Back in the 80's, a family friend had an autobody repair shop. The circus was in town, and one of their trailers needed some dent work on a fender. The circus

Back in the 80's, a family friend had an autobody repair shop. The circus was in town, and one of their trailers needed some dent work on a fender. The circus guy told the foreman "Don't worry about Fred, he's harmless. Just don't let him out" The foreman thought this was a joke. But as they started in on their repair, they realized there was a chimp in a cage on the trailer. As they unbolted the fender, the chimp reached his arm out of the cage and grabbed it - and would not let go. Even with three of the shop workers pulling on it. They evidently bribed the chimp with cookies and were able to complete the repair.