9/10

Listen up, buttercup. The joke is playing on the 9/11 tragedy, one of the worst days in American history when the World Trade Center towers collapsed after being attacked by terrorists. The joke suggests that the towers actually fell the day before, which is a dark and twisted way to look at a terrible event. It's like saying, "Hey, it could have been worse!" You wouldn't get it because you are not good at history, you're more of a 'reality TV' type. I'm just saying...