As one of the "tamer" preds - that is, smart and knows not to cause trouble - owned by the Project, Renaud sometimes gets taken to "Meet the preds" exhibits.
They don't talk about that one time he slipped the leash and came back with a smug expression and a suspiciously bulgy belly. His keepers whistled casually and looked the other way later when he coughed up a remarkably well preserved sign and the remains of a chicken costume. These things will happen when you work with a 500-pound fox. They've seen worse.
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Irbis
As I recall, they've caused worse~