eh!? What about this one:
Two (persons of ethnic origin of your choice) walked into a bar, the third one ducked.
Or this:
A (person of ethnic origin of your choice) comes running into a bar, he's very excited and has a pile of $h!t in his hand. He makes his may to the bar and exclaims to the bartender, "Hey! Look what I almost stepped in!"
And the best advice I can offer for New Year's Eve partiers:
Do NOT play leapfrog with unicorns.