There was this little guy sitting in a bar, drinking, minding his own 
business when all of a sudden this great big dude comes in and --WHACK!!-- 
knocks him off the bar stool and onto the floor. The idiot says, 
"That was a karate chop from Korea." The little guy thinks "GEEZ," but he 
gets back up on the stool and starts drinking again when all of a sudden 
--WHACK-- the big dude knocks him down AGAIN and says, "That was a judo 
chop from Japan." So the little guy has had enough of this... He gets up, 
brushes himself off and quietly leaves. The little guy is gone for an hour 
or so when he returned. Without saying a word, he walks up behind the 
big idiot and --Bong!!!"-- bangs the big dude off his stool, knocking him
out cold!!! The little guy looks at the bartender and says, 
"When he comes to, tell him that is a crowbar from Sears." 

    Source: geocities.com/sunsetstrip/palms/7416

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