I can't speak to the Seagul, but I have known many people, including my late mother-in-law, who maintained that Chevy Chase is a jackass of the highest order. She met the prick in Hawaii, back when she was a bartender slash stripper. He was sloppy drunk and abusive to everyone, threatening the non-compliant with the promise that he was going to come back and "buy the place."
Security saw that he exited the premises' doors head-first, just like in "Casino."
Chevy didn't come back after that, LOL.