SEARCHED AT ENTRY POINT OF CINEMA

My sister and I were treated very badly at cinema today. The lady who described herself as cinema assistant insisted that I leave a plastic bag which had a child's school bag inside just because she also saw a cool drink inside. Ok,I left the plastic. While we're in there beginning to enjoy the movie,the other cinema employee(according to his name tag it was written manager) ,he came inside the cinema and insisted on searching us. We didn't like this and Dinah who said she is the manager came in and gave us our money back. We didn't feel that the place was conducive for us. We actually didn't know that our parcels should be left, I think the lady could have just told me to leave the cold drink only not my other properties. As I saw that it was the cause of the problem. It was such a bad experience and it was not even the first time we experienced this delima.