My family seems to be full of extroverts (although none of them have taken the MBTI) and don't seem to understand why I don't want to attend both social and family functions (Thanksgiving at family friends' houses, annual BBQ's, block parties, dances at school, etc.) They don't judge me on it or call me out, but my mother has often asked why I don't want to make any new friends or invite the few close friends that I have over. I strongly dislike the idea of having even close friends hanging around when I could be doing what I want to do distraction free.
My family also doesn't understand my habitual "tearing down" of people (including, but not limited to my family) with objective criticism and sarcastic wit. I've had many conversations with my mother about being kinder with my words and not so critical. I've slowly been getting better at keeping my self-improvement tips to myself instead of badgering already flustered siblings over the way that they decided to plan this, or that.
The worst is my sarcasm, it's been so bad that once I've been banned from speaking in my house. Instead of being grounded from the television or hanging out with friends, my parents have told me that I'm not allowed to speak or else I will be given a substantial amount of paddlings with a spanking stick. Eventually I got bored of not sharing my wit and retorted sarcastically to my mother, which resulted in a very sore bottom.
It could be worse though; at least I have a sister who shares my same dry, morbid humor.