I have always used snickers workwear for years and like the toolvests, and hook the snickers knife on the designated button on left top pocket.
Anyway was working town centre fitting downlights in clothes shop, knife hooked on button, screwdrivers and strippers in pocket and forget to bring in half the kit in from the van, so walked out of shop only to be shouted at "stop right there" I looked round and two officers looking really on edge, "what you doing" going to van I said "not with that on you your not" I did not have a clue what the hell they were talking about until they started pointing at my top pocket.
Warned me about having an offensive weapon but could see it was part of my tool kit and just said next time take it off and leave it in your pocket or something, I could see their point though but did not give it a thought.