One of my relatives did the "I'm pregnant" thing. It annoyed me.

I posted "I'm finally joining the real world, selling my bike, going to drive a car." Responses were "yeah right" and, from my Canadian friend, "I don't get it, what's the joke?" (After it was explained to her this was April Fools, she turned around and posted "I've decided being a feminist is too much work" and got similar responses.)