We used to get at least one guest per year hop the fences around Raging Bull and far more at Superman.
People are idiots, and all they can think of is that they want their stuff back, whether a hat, cell phone or whatever.
In virtually every case, the person is arrested for trespassing and banned for life. That's enforced, but not perfect, obviously. The name is flagged in the computers, and as long as they pay cash and stay out of trouble, they usually get away with coming back unless someone in security involved in the previous transgression sees and remembers them. That does happen, too.