But even cancer couldnt clean up Schimmels raunchy act. Hes dirtier than ever and even more in-your-face with his sex talk. By bringing behind-doors nookie onto the stage, he softens up crowds who can relate. On his website (www.robertschimmel.com), he features a Word of the Day. Most recently, he highlighted bukkake and buddy booths, both hints at what youll see when you catch his act. Just dont forget the protection. Schimmel splatters his dirt all over the crowd at the Palm Beach Improv (550 S. Rosemary Ave, West Palm Beach) for three nights starting Friday at 8 p.m. Tickets cost $19.17 to $21.30. Call 561-833-1812, or visit www.palmbeachimprov.com.