This won't make any sense if you don't know that in Chinese, "pork" is called "pig meat" (豬肉)...
I won't mention where this happened (I don't want to
go to jail), but for lunch today we went to a restaurant where one of us ordered a pork dish and the other ordered beef. When the clerk came over to our table with our food, she wasn't sure who had ordered what, so she asked (for some strange reason), "你們兩個,誰是豬?" (Basically, "Which one of you two is a pig?")
Well, I was chewing my cud when she asked, so obviously it wasn't me...