I know a few extroverts like that, with no filter whatsoever. I usually tell them NOTHING at all as they are just too ignorant and arrogant to know what is appropriate or not. Those kind I stay far away from, but most are not like that (around here anyway). To me they are just immature, childish, and have extreme emotions. Honestly, I do consider myself an introvert, but there are many extroverts around me, so I end up having to act much more extroverted than I like. I've learn how to manage though, but I still just don't get how they find talking to strangers and going to parties/crowded loud areas recharging. It's just mind boggling! :P