Dh used a utility knife to score some wood. It went right through and he didn't think it would affect my cutting mat. Guess who's getting a new cutting mat? When I told him how much, he said "You've got to be kidding!" Like his tonsils were fighting each other and squealing! " He doesn't have tonsils!! I made him hand over a $100.00 bill. The remainder is for punitive damages!!