Quite a few like that where I'm from. Trying to look and seem shifty and dangerous. And same as you, one of the worst is an ex mate of mine, tried telling my lad one night that I was the hardest b*****d he'd ever seen fight. It was the first time he'd met my son, it was a chance meeting, he didn't know he was my son at the time lol. Like you say, creepy little c**ts that would shit themselves in a proper confrontation. Quite laughable really lol.
Oh yeah, and the f****r had never seen me in a fight, not even when I used to box lol
Edited to add, just read this back, and not saying ho