The worst I've had so far is after I accidentally parked in front of some dudes driveway. Out comes this little man screaming 'is that your $%&#ing car? It's in my $%&#ing drive!'. I promptly dropped my 'talking in England' voice and told him to be more polite. It's amazing the transformation when people realise I'm 6'4 and can have a gruff Scottish accent when needed. He shat a brick.
Scottish accents are as good as a half brick in a sock as a deterrent. Plenty times in England I've avoided boxing purely off the back of being from Fife.
Yeah a good thick accent will get you out of many things, Scottish goes far, even my Manc accent is better than some, nothing funnier though that a nice posh middle England fella getting irate. Doesn't matter how hard they are you have just gotta laugh....even before they beat your head in.
Going back to my original post though, if somebody says in a deep scouse accent that they are going to set you on fire you tend to believe they would if they could....
A few good stories I've heard from Glasgow though. This guy was abseiling down a high rise tower block and woke some nutter up, even though it was mid day. Nutter opened the window shouted something and started to hack the guys rope with a knife. He just made it to the ground. When he recovered his rope it was nearly cut through.
Got to admit though, I like a good nutter...(from a distance)