You can be stopped. I have been stopped. I was just told to cash the 25c chips or not be welcome in future. I chose the latter. I was actually recognised 6 months later (Stagecoach, Beatty). The guy at the cage would not serve me. We waited outside a while and my friend Lyn went in and got them.

Amusingly, on another occasion I was just leaving Mahoneys Nugget with 4 racks of chips in my hands when a security guard called after me. I stopped and he asked if I wanted him to walk to the car with me as I had a lot of chips on show.