Thankfully I've only had 2 issues, both at the grocery store.
A couple weeks ago one of the employees asked if I had a mask on the way in- this happens fairly often, you just say "I have an exemption" and they say "ok" and you move on. Exempt this time an employee asked if I had an exemption card (which don't exist here) and we argued for a minute before she let me go. I called the store to complain and the manager apologized to me.
Today was my 1st member of the public. Some WuFlu Willy started harassing me as I was going down the aisle (even in compliance with the arrows!) about a mask. Got a pic but sadly the video didn't record. Went on some rant about me getting everyone sick, about his wife being in the cancer hospital, that it was "BULLSHIT" that I had an exemption (wish I'd said the same about his wife), saying that I should send someone else to get my groceries or get curbside/delivery (he didn't have a good answer as to why he wasn't doing it as he was so concerned). He claimed exemptions don't exist in the bylaw (they do, the sign at the front of the store even mentions them lol) and to top it off he was wearing a mask with valves, which they say don't prevent the spread...sadly I didn't think to say that to him at the time.
There was an employee at the end of the aisle so I yelled at her to get security and the guy walked away, stopping only to rant at the employee for allowing people without masks in before leaving.
OH NO NO NO...that could be considered assault, my friend. They hate it when to stay calm and know the facts better than they do.
I was polite and respectful the whole time, even when he claimed I was lying about having an exemption. They want justification for their behavior, I laugh thinking about this guy googling "mask bylaw exemption" and imagining his face when he learns I was right. Or if he calls the store and they tell him the same. This is assuming he wrongly thinks he knows the bylaw or was just bullshitting.
What clearly upset him the most was when I asked for store security. Deep down I think he knows he was in the wrong- he didn't stick around to see the store employees side with him and kick me out for not wearing a mask. He didn't stop to argue with store staff, he ran off worried that he was going to be banned from the store if he stuck around.