YANBU obviously.
I would probably have kept on walking though - despite an alarm going off.. (And I have before!) Fuck 'em. If they can't deactivate the 'security tags' properly, then tough shit. I am not wasting my time stopping and going back in.
Fortunately, there has always been 10 to 20 other people going in and out of the doors on the few occasions it has happened, (to me,) so no-one knew who was causing the beeping. And I am gone by the time anyone wakes up and runs to the door.
If I know I have not nicked anything, (which I never do!) I won't stop.
DO complain though @London91 Their behaviour was rude and obnoxious.
And the different stories people are coming out with on here are very familiar.
I was in the pharmacist last week (next to the doctors surgery,) and the woman serving said to a woman picking up a prescription (who I live a few doors away from,) 'YOU HAVE A MEDICAL EXEMPTION DON'T YOU? FOR DLA, and EMPLOYMENT SUPPORT ALLOWANCE ISN'T IT?'
The woman looked so embarrassed, coz now me - her neighbour, knows she is on DLA, and has free prescriptions. I don't give a shit, but someone who had a grudge against her, could have used that against her, as they know she is on disability benefits.
It's bad enough that every fucker in the pharmacy knows your address, (as they always call it out as loudly as possible!) without everyone knowing you are on benefits too. The thing is, this woman had already filled in the back of the prescription, so the pharmacist had no reason WHATSOEVER to yell out 'what is your exemption?' to my neighbour.