Everyone says it's important to be your full self on a first date, but let's be honest: some people should absolutely not follow that advice. Their full selves are far too bizarre, ridiculous, and outlandish for any stranger to encounter without a serious advanced warning. I suppose showing all those true colors is good for the other person to make an immediate judgment, and in all of these cases, that immediate judgment was a hard no. Personally, I have never had a date that went so poorly I c…