Nasty Bar Joke

One day a man was sitting at the local bar with some friends when one of his drunken buddies bet him he couldn't drink from the spitoon in the corner. "I betcha a hundred bucks ya can't even take one sip." he slurred. The bartender then chimed in "hell i"ll up it to three-hundred if ya can do it." So the man figures why not and begins to chug.  After 2 seconds of this, the other men call off their bet, clearly disgusted, but the man contains to drain it.  Finally after at least 2 minutes of drinking from the spitoon, the man stops drinking and wipes the spit off his face.

 "Why didn't you stop when we started shouting, you didn't havta drink it all."

In response the man simply shrugs and says, "I was gonna but it was all in one strand."