“At oral argument, counsel for [Defendant] suggested we reject the [Plaintiff]’s evidence as self-serving. But this is summary judgment, and we may not weigh the evidence or make credibility determinations.” Equal Emp’t Opportunity Comm’n v. Vicksburg Healthcare, LLC, — F. App’x —, 2016 WL 5939424, at *3 (5th Cir. Oct. 12, 2016) (internal citations omitted).