Appellant Bair sued appellee Bryant in the Municipal Court for damages resulting from a collision between the automobiles of Bair and Bryant. Bryant moved “to strike” the complaint on the ground that both he and Bair had been made parties to an action in the United States District Court for the District of Columbia arising out of the same occurrence and “a multiplicity of suits is created by this action.” The court, treating the motion as one to dismiss, granted it and this appeal followed, .
The record does not disclose whether any evidence was taken at the hearing on the motion, but it is apparent that the trial court had before it either the record of the District Court proceedings or stipulations of counsel as to its contents. Accordingly, we have examined the District Court record and from it and the record before us gathered the following facts.
The collision occurred on June 4, 1952, and on July 9 one Enloe, a passenger in Bryant’s car, sued Bryant and Bair in the District Court for personal injuries. On July 21, before either he or Bryant had answered the District. Court complaint, Bair sued Bryant in the Municipal Court for damage to his automobile. On the following day, July 22, Bryant filed his answer in the District Court. On July 25 Bair filed his answer in the District Court and at the same time filed a cross-claim against Bryant for contribution. On August 20 Bryant filed his motion “to strike” in the Municipal Court action. This motion was granted on November 29 and on December 4 Bryant answered Bair’s cross-claim in the District Court and also cross-claimed against Bair *510 for contribution and for $150 for damage to his automobile. 1
The question before' us is whether the Municipal Court was correct in striking or dismissing Bair’s complaint. In its memorandum opinion the court indicated that it granted the motion on two grounds, namely, (1) that Bair by seeking contribution from Bryant in the District Court and suing him for damages in the Municipal Court had split his cause of action,.and (2) that the District Court having first obtained jurisdiction should be given precedence.
We have ruled, in accordance with general authority, that a single or entire claim cannot be split into separate claims and separate suits maintained thereon. 2 Did Bair by suing Bryant in the Municipal Court for damages and cross-claiming against Bryant for contribution in the District Court attempt to split his cause of action against Bryant? Bair’s claim for damages is á common-law claim. His claim for contribution is equitable in nature, being founded “on the doctrine that general principles of justice require that in the case of a common obligation, the discharge of it by one of the obligors without proportionate payment from the other, gives the latter an advantage to which he is not equitably entitled.’’ 3 The right to damages, if established, will rest on Bryant’s Liability to Bair. The right to contribution, if established, will rest on a common liability of Bryant and Bair to Enloe. 4 The right to damages and the right to contribution are mutually exclusive, for Bair can recover damages only if he was free from negligence and will be entitled to contribution only if he was negligent and his negligence combined with that of Bryant to cause En-loe’s injuries. Furthermore, the right to contribution is a contingent right. It arises from a joint liability but is enforceable only after the one seeking it has-been forced to pay. 5 Thus the statute of limitations begins to run against the right to contribution only from the time of the disproportionate discharge of the common obligation by one of the common obligors. 6 The statute of limitations runs against Bair’s claim for damages from the date of the collision. Because of these differences we think Bair’s claim for damages and his claim for contribution did not constitute a single claim, but were separate and distinct, and there was no splitting of a cause of action. 7
Aside from the question of splitting a cause of action, was the Municipal Court justified in ruling that the District Court first acquired jurisdiction and that the entire controversy should be decided in the District Court to avoid a multiplicity of suits?
8
The District Court action commenced first, but it was an action by Enloe against Bryant and Bair. When Bair commenced his. action in the Municipal Court there was pending in the District Court no action between Bryant and Bair. In point of time, the respective cross-claims between Bryant and Bair did not relate back to the date that Enloe commenced his action in
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the District Court.
9
Therefore as between Bryant and Bair, the Municipal Court action was prior in time. The fact that Bair and Bryant'were codefendants in the District Court did not compel them to assert their claims against each other by way of cross-claim. There are no compulsory cross-claims.
10
Bair had a choice of asserting his claim for damages against Bryant either by way of cross-claim in the District Court or by independent action in the Municipal Court. He chose the latter and we perceive no reason why he should be denied this choice. His claim for damages- ($381.-87) was primarily a Municipal Court action. The District Court has no primary jurisdiction over such a claim. This is not a case such as Coates v. Ellis, D.C.Mun.App.,
On two occasions 15 .we have suggested, and we now repeat the suggestion, that in situations of this nature, where counsel feel that an action in the Municipal Court infringes upon or interferes with a pending action in the District Court, application for relief should be made to the *512 District Court. Questions involving the nature of a case before the District Court, of application and construction of the rules of the District Court, and interference with the jurisdiction of the District Court, can best be answered by that court itself.
Reversed.
Notes
. We have referred to the cross-claims of Bair and Bryant as seeking contribution from the other. Neither did so in express terms, but it is apparent such was the relief sought and the parties in their briefs here have referred to Bair’s cross-claim as one for contribution.
. Astor Pictures Corporation v. Shull, D.C.Mun.App.,
. George’s Radio v. Capital Transit Co.,
. Yellow Cab Co. of D. C. v. Dreslin,
. Knell v. Feltman,
. Annotation,
. The trial court in its memorandum, and appellee in argument here, relied on Simodejka v. Williams,
. We do not stop to consider whether two suits, one in the District Court and one in the Municipal Court, constitute a “multiplicity” of suits.
. Speed Products Co. v. Tinnerman Products,
. Moore’s Federal Practice (2d ed.) §§ 13.02, 13.34; Hoosier Cas. Co. of Indianapolis, Ind. v. Fox, D.C.N.D.Iowa,
. Kline v. Burke Const. Co.,
. Yellow Cab Co. of D. C. v. Janson,
. Bryant’s cross-claim for damages did not make Bair’s claim for damages a compulsory counterclaim [there may be a compulsory counterclaim to a cross-claim, Moore’s Federal Practice (2d ed.) § 13.-34] because Bair’s claim was the subject matter of the prior pending Municipal Court action. Fed.R.Civ.P. 13(a), 28 U.S.C.A. We may add that under the conclusion here reached Bryant’s claim for damages is a compulsory counterclaim to Bair’s Municipal Court action. Municipal Court Civil Rule 13(a).
. Coates v. Ellis, D.C.Mun.App.,
. Kaplowitz Bros. v. Kahan, D.C.Mun.App.,
