Taking the Bit Too Far

My family does this thing I like to call "taking the bit too far". It's what happens when we are starting to become very comfortable with someone but we haven't completely established trust yet. We lose all sense of boundaries and we say whatever comes to mind, some of which might be better left unsaid. I don't know where this habit comes from, but we all do it, not just my immediate family, but every aunt, uncle and cousin. We all start at different ages but it's almost inescapable. For years I thought I'd escaped it but it turns out that I'm just a late-bloomer.