I agree with addie. Thats what we do or if we are nice threaten to do first. It's illegal to write a bad check and where we live the sheriff will show up on his doorstep to collect funds from a bounced check. Our bank also has a system where if a check bounces they will electronically collect the funds from the persons account as soon as it becomes available. They gave us stickers to post saying that by writing us a check you agree for this to happen.