There was this little guy sitting in a bar, drinking his beer, minding his own business when all of a sudden this great big dude comes in and --WHACK!!-- knocks him right off the bar stool and onto the floor. The big dude says, "That was a kung fu chop from China." The little guy thinks "GEEZ," but he gets back up on the stool and continues what he was doing when all of a sudden-WHACK!!-- the big dude knocks him down AGAIN and says, "That was a karate chop from Japan." The little guy, not wanting any trouble, and thinking this guy is nuts, gets up off the floor, grabs his beer and moves a few seats further down the bar, and continues to sip at his beer. All of a sudden, --WHACK!!-- without warning, he feels this foot kick him upside the head and he goes sprawling to the floor once again. The big dude says with a smile, "That's kickboxing from Thailand." The little guy, having had enough of this gets up, brushes himself off and quietly leaves. He had been gone for about an hour when he returned, and without saying a word, walks up behind the big dude and-WHACK!!!-- knocks the big dude off his stool and lays him out cold! The little guy looks at the bartender and says, "When he comes to, tell him that's a crowbar from Sears."
After a frustrating class, the instructor yelled, "All right! All you dummies are dismissed!" As the rest of the students walked away, one remained at attention. The instructor walked over until he was eye to eye with the students, raising just a single eyebrow. The students smiled and said, "Sure was a lot of 'em, huh, Sir?"