Paying customers get treated like *******

Out of all the years I have shopped at checkers I have NEVER been stopped by the security to check my shopping

Shopped at fourways checkers for over 18 years and Saturday I got stopped by the security guard to check my whole trolley which everything was packed in checkers bags. I asked her are you seriously going to check my whole slip and she laughed, i asked her is this the normal and she again shrugged her head and carried on looking threw the packets and slip... I then raised my voice and asked her is this going to take long, I don't see you stopping anyone else, she then threw the slip at me and walked away... Shocked as I was I stood there for a while to see if she was checking all the customers which she didn't

SERIOUSLY!!!! If your security tag system is not working why must your paying customers get treating like *******

Or if your security guards are just stopping random people they must explain why!