I had just bought something at a Marshalls and when I walked out the door 15 feet from the counter the beepers went off.I turned around and asked them to take the sensor off and they asked me if I had paid for it!! They were really rude to me like I hade stolen something I had paid for 20 seconds earlier.I did write to corporate and they sent me a 10 % off coupon,an apology and a phone call from the manager asking me who it was that treated me like a thief.I would recomend at least contacting them,even if it just makes you feel better.