BETHLEHEM (AP) - Here's a tip: Don't give a prescription painkiller as a gratuity.

According to police, that gesture led to trouble for a patron of a Pennsylvania casino on Thursday.State police say the man at the Sands Casino in Bethlehem tipped a server with a Valium pill.The Morning Call reports David Carnevale of Caldwell, New Jersey, faces a charge of possession with intent to deliver a controlled substance.He was released on his own recognizance.A preliminary hearing is scheduled for Jan. 6. A working phone number for Carnevale could not be found.