Ernest Gonzales v. Thorndale Cooperative Gin and Grain Company, 578 S.W.3d 655

Ernest Gonzales, a commercial trucker who stayed on Thorndale Cooperative Gin and Grain Company’s property, slipped in a bathroom after panicking when he felt/observed a rat tail and struck his head, injuring his eye.
Gonzales sued Thorndale for negligence (premises liability). Thorndale moved for traditional summary judgment on two independent grounds.
Thorndale’s two summary-judgment grounds: (1) hazards (rats and standing water) were open, obvious, and known so no duty to warn; (2) under the doctrine of ferae naturae, Thorndale owed no duty regarding wild rats indigenous to the area.
The trial court’s signed final judgment granted Thorndale’s motion without specifying which ground(s) supported the ruling; the judge separately sent counsel a letter stating the court had concluded the hazards were open, obvious, and known.
On appeal, Gonzales challenged only the “open, obvious, and known” ground and did not challenge the ferae naturae ground.
The Fourteenth Court of Appeals affirmed, holding the appellate court must uphold a general summary judgment if any unchallenged, independent ground supports it and that a private letter cannot be used to supply reasons omitted from the formal signed order.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether the trial court’s general summary judgment can be treated as based on the judge’s separate letter identifying the open/obvious ground	Gonzales argued the hazard was concealed or not fully known (e.g., rats could fall from ceiling) so the open/obvious ground was incorrect	Thorndale argued hazards were open/obvious and alternatively that ferae naturae eliminates its duty regarding wild rats	Held: No — appellate review looks only to the formal signed judgment; a separate letter cannot be incorporated to supply omitted grounds
Whether summary judgment must be reversed when appellant attacks only one of multiple grounds in a general order	Gonzales attacked only the open/obvious ground	Thorndale argued the alternative ferae naturae ground independently supports judgment	Held: The appellate court will affirm if any unchallenged ground supports the judgment; Gonzales’s failure to challenge ferae naturae requires affirmance

Austin v. Kroger Tex., L.P., 465 S.W.3d 193 (Tex. 2015) (landowner duty limited to unreasonably dangerous conditions that are not open and obvious)
Union Pac. R.R. v. Nami, 498 S.W.3d 890 (Tex. 2016) (feraenaturae doctrine limits owner’s duty re: wild animals indigenous to area)
Star-Telegram, Inc. v. Doe, 915 S.W.2d 471 (Tex. 1995) (appellant must show trial court erred as to every ground in a general summary-judgment order)
Malooly Bros., Inc. v. Napier, 461 S.W.2d 119 (Tex. 1970) (unchallenged grounds in a general judgment must be upheld)
Heritage Gulf Coast Props., Ltd. v. Sandalwood Apartments, Inc., 416 S.W.3d 642 (Tex. App.—Houston [14th Dist.] 2013) (same principle; appellate courts may affirm on unchallenged grounds)
Mattox v. County Comm’rs Court, 389 S.W.3d 464 (Tex. App.—Houston [14th Dist.] 2012) (courts should not consider extraneous letters to determine reasons for summary judgment)
Cincinnati Life Ins. Co. v. Cates, 927 S.W.2d 623 (Tex. 1996) (appellate courts need not limit review to the grounds stated in the trial court’s order)
McConnell v. Southside Independent School District, 858 S.W.2d 337 (Tex. 1993) (policy favoring clarity and express pleading in summary-judgment practice)
Strather v. Dolgencorp of Texas, Inc., 96 S.W.3d 420 (Tex. App.—Texarkana 2002) (policy rationale for requiring a single, formal place to identify summary-judgment grounds)