A man walks into a bar and says "ouch."
It is all the buzz on my floor at work today, because a lot of people just don't get it, so they are taking a survey to see if they can figure out why some people get it and others don't. Yes, we scientists are relentless in our academic pursuits. At first, the survey takers thought it was a male/female thing, but I and another girl did get it, so now the consensus is that Americans and Canadians get it, but people from other countries don't. Which makes sense, because when you're learning a second language, jokes are always the hardest thing to understand.