Seagal was known for many years as being a complete dick on the movie set. In the movie Executive Decision with Kurt Russell, Russell threatened to leave the picture because Seagal was such a prick. They changed the script and killed Seagal's character off early in the movie because of it. Seagal was also known for deliberately hurting other actors and stuntmen on the set. Kicking them in the nuts, over applying holds, etc. He famously tried to fuck with wrestling and martial arts legend Judo Gene Lebell on a movie set and Lebell put him to sleep with a choke hold, making Seagal actually shit his pants in the process.

Lebell confirmed this story to Joe Rogan.