I'm breaking protocol tonight.
When I started this blog, I resolved only to post responses to exact quotes that appeared in my search stats in the form of a question. And, while the phrase above appears often in my search stats, I've never seen it in the form of a question. I decided to break the rule and post about it anyway, because I'm convinced that it's intended as a question. Here's why: That's the whole joke. It makes sense for ONE LINE of a joke to appear in search stats...maybe someone couldn't remember exactly how it went, or needed to find out the punch line. But in the case of "Two guys walk into a bar, and the third one ducks", that's all she wrote. There is no more. It's the set-up and the punchline all rolled into one...so what could a person who Googled the WHOLE JOKE be looking for?
Finally, after dozens of people had arrived at one of my blogs by Googling this joke in its entirety, I decided that they were looking for an explanation.
So here it is. (Be warned, I am no artist. There is a reason I deal so exclusively in words. Still, I think that if in fact you're sitting there scratching your head over "two guys walk into a bar and the third one ducks", this will clear it up for you.)