When Jim Carrey began performing at The Comedy Store early in his career, Rodney Dangerfield was so impressed that he had the budding comic signed on as an opening act for an entire season.
Years later, Carrey made a memorable appearance at The Comedy Store's 20th anniversary special. Indeed, he saw fit to mark the occasion by wearing a special costume: nothing but a sock, strategically placed upon his "lower limb."
[Carrey won an MTV Movie Award (for "best villain") for his role as the Riddler in Batman Forever. During his acceptance speech he called the award "undeniable proof that I am a badass Motherf---er," before making lewd hand gestures in front of his crotch. Host Mike Myers' verdict? "I didn't think it was sexually explicit enough. I like my comedy porno."]
Sources
Internet Movie Database, People magazine