years back, I had a mate - he was the most lovely man, but he was some sort of Karate master thingy - well known about town - he was a towering figure with muscles that looked like a parked 20 ton excavator.
One day - a few of us were walking our dogs in the huge dog park -- no vehicles allowed - some young agro idiot on a bike came along at top speed - and I can't recall why he was stopped - perhaps the dogs were in the way or something - anyway, he got the shits with us and took off - spraying us all with gravel
our big friend, as friendly as a giant as he is ----- doesn't take kindly to aggression etc. and he has a very long memory and is very patient.
Another day - a long time after - our young agro on his motor bike happened to be coming along a thin fenced path - on which - he could not turn around -
and, guess who else was on that narrow narrow path?
oh dear --- as they say in the classics ----------- if was all over very quickly