It's hardly a significant problem, but it's been playing on my mind since it happened! A couple of days ago, I was stood in a shop waiting to pay. The man in front was right at the counter. I was approx 2 metres back. The line markings on floor have one line about a metre from the counter - guy was stood in front of that right against counter - and then another line 2 metres back from the 1st. I was stood in front of that one. I acknowledge that I was in the wrong for not standing on the line but genuinely I was not close to him. I believe there were still 2 metres between us given we were both standing in front of our respective 2 metre markings.
He turned around and very rudely told me to get back behind the line, when I didn't shuffle back enough he was like 'keep going, I said get behind the line'. It felt very confrontational and was out of nowhere so I just obeyed and apologised.
Then he had brief rant to the shop assistant 'about fucking people never adhering to the rules' and some other mumbling I didn't hear.
I understand he may have been a vulnerable person, but AIBU to feel like this was unneccessary on his part? On the one hand I feel bad about it because I wasn't on the line, but neither was he so the space was still there. The lines aren't magic.