Several people involved with the series, including Cox, have confirmed that the bears used in the production were sometimes ill-tempered or did not behave as expected, and that working with them could be dangerous. On one occasion, Bruno the bear sat on Clint Howard. According to Dennis Weaver, during the run of the show, the cast and crew were forbidden to publicly mention any incidents of bear misbehavior. However, Clint Howard has stated that he never suffered any injuries from the bears on the show, and that his only injury came from working with a raccoon that had not been declawed.