Denise Richards got the last laugh after Charlie Sheen pulled a prank on her! During an appearance on KFC Radio on Tuesday, the Two and a Half Men alum recalled he once wrote out a check for a whopping $1 million to The Real Housewives of Beverly Hills alum... as a joke! Damn! Related: Charlie Sheen Apologizes To Dax Shepard For 'Inappropriate' Behavior! However, he wasn't laughing in the end - because it totally backfired on him! He said: "I wrote a check to Denise once for $1 million on her birthday, kind of as a joke, and she kept it not as a joke.