Maria de Jesus Zamora was shot while she worked as a cashier at Mariscos El Marinero Restaurant (Mariscos), a restaurant located in Laredo, Texas. She sued the restaurant in Texas state court, alleging that her injuries resulted from Mariscos’s negligence. Nautilus filed this suit in federal court seeking a declaratory judgment that it had no duty to defend or indemnify Mariscos for the injuries suffered by Zamora. The district court granted Nautilus’s motion for summary judgment, concluding that because Zamora’s injuries would not have occurred but for her employment, her injuries arose out of and occurred in the course of her employment. As such, the district court held that the policy unambiguously excluded Zamora’s injuries from coverage. We affirm, but for slightly different reasons than those articulated by the district court.
BACKGROUND
The facts of this case are undisputed. On March 19, 1993, Zamora was working as a cashier at Mariscos when a gang of three men walked in and began shooting. Two persons were killed. Zamora was shot in the chest, suffered fractured ribs, and experienced severe nervous shock. Zamora filed a negligence suit against Mariscos in state court. Mariscos thereafter sought coverage from Nautilus under its commercial general liability policy. Nautilus filed this declaratory judgment action in federal district court, seeking a determination that it had no duty to defend or indemnify Mariscos. The policy excluded, among other things, bodily injury to “[a]n employee of the insured arising out of and in the course of employment by the insured; ...” (Emphasis added.) Nautilus moved for summary judgment and argued that because Zamora was injured during her shift at Mariscos, Zamora’s injuries “ar[ose] out of’ and were suffered “in the course of [her] employment.”
The district court agreed with Nautilus. First, the court concluded that Zamora suffered her injuries while she was in the course of her employment at Mariscos. Second, borrowing from Texas’s workers’ compensation ease law, the district court held that the *538 phrase “arose out of’ meant that Nautilus was not obligated to defend or indemnify Mariscos if, but for her employment, Zamora would not have been injured. Because the. evidence was undisputed that Zamora would not have been shot but for her employment with Mariscos, the district court granted summary judgment in favor of Nautilus. Zamora filed this timely appeal.
DISCUSSION
Because we sit in diversity, we must apply Texas law, mindful that in making an
Erie
guess, “[w]e are emphatically not permitted to do merely what we think best; we must do that which we think the [Texas] Supreme Court would deem best.”
Jackson v. Johns-Manville Sales Corp.,
We begin with basic principles of Texas insurance law. Texas has adopted the “eight corners rule,” which provides that Texas courts “look only to the pleadings and the insurance policy to determine whether the duty to defend exists.”
Cullen/Frost Bank of Dallas, N.A. v. Commonwealth Lloyd’s Ins. Co.,
Because there is no dispute about the circumstances surrounding Zamora’s injuries, this case presents a pure question of law about the meaning of Nautilus’s employment-related exclusion. The parties agree that Zamora’s injuries occurred in the course of her employment with Mariscos, and the sole question we face is whether Zamora’s injuries “ar[ose] out of’ her employment. The district court concluded that her injuries did. In reaching that conclusion, the district court imported the “positional risk” or “but for” test commonly applied in workers’ compensation cases.
See Walters v. American States Ins. Co.,
We cannot conclude, however, that the Texas Supreme Court would turn to workers’ compensation principles as a means of interpreting the terms of an insurance contract. First, the positional-risk doctrine is a judicially created tool for interpreting Texas’s workers’ compensation statute, and not used for the purpose of interpreting insurance contracts.
See, e.g., Westchester Fire Ins. Co. v. American Gen. Fire & Cas. Co.,
Here, it is undisputed that Zamora was performing her duties as a cashier when she was shot. We therefore hold that the Texas Supreme Court, if faced with the policy exclusion and facts of this case, would conclude that Zamora’s injuries “arose out of’ her employment and that therefore Nautilus had no duty to defend or indemnify Mariscos.
See T.I.M.E., Inc.,
Judgment AFFIRMED.
Notes
.
See Transport Ins. Co. v. Standard Oil Co.,
.
See Western Heritage Ins. Co. v. Magic Years Learning Ctrs. & Child Care, Inc.,
