Don't you just hate...

Don't you just hate it when you're nice on the subway and let someone out in front of you only to have that person be possibly the slowest human being alive? Inevitably, this person will walk up the first set of stairs in the middle (preventing you from going around him or her) and then by the time they actually get to the top of the stairs, the subway station is too crowded for you to get around them, so you end up plodding up the second set of stairs behind them to get outside.

Don't you just hate that?