My local ones were the same, always kinda on your guard, to be honest It's probably the fact they had Fruit machines as well that attracted the desperate addicted type that needed some money for the next Gambling and or Drugs fix.
I remember in the Cascade one once a black lad saying we need to give him some money or he'll put our heads through the machine, problem is the shite hole parts just outside city centres which are a short walk away doesn't help
But then you could be just walking down the street in day time near where we lived and some white guy that looked like he'd been sniffing glue or on drugs just randomly tried to kick me in the nuts, don't know why but I got a sense of something was going to happen and I raised my leg up and blocked him, then threatened some more verbally