A little guy is sitting at the bar in a pub when in walks a body building giant who proceeds to knock the guy off his stool and says "That was a karate chop from Korea!" and then orders his drinks. The little guy gets back onto his stool looking a little stunned but deciding not to pick a fight with the giant thug.
A few minutes later the thug returns to the bar, knocks the guy off his stool again and says "That was a judo chop from Japan!".
The little guy picks himself up and wobbles out of the pub. He comes back half an hour later to see the thug sitting on his stool at the bar and proceeds to hit him on the back of the head and knocks him out cold. He turns to the barman and says "When that git wakes up tell him that was a crowbar from B&Q!"