As someone who used to work at a petrol station, it literally boils down to a few different things
  • who is in - if the an area manager is in, they can get funny
  • mood - cashiers in a foul mood? it happens and they just do annoying crap
  • recent events - We had it once where about 4 kids turned up on scooters \ 125 scramblers, all filled up and rode off without paying. we got the number plates so it didn't matter but for a while we had to go OTT on crap like that.
  • New guys - they tend to worry to much


At tesco, we were meant to ask all the time and it was technically a rule, but largely ignored

Me personally, it never bothered me, but then i was a biker so I'm bias.
I've been asked to remove my helmet once before, so i just flipped the front up and they were okay with that.