Living with your parents as an adult can be frustrating, but living with your crazy grandmother is a whole other story. Perhaps your grandparents are kind, lovely, respectful people, and you wouldn't run into any problems with them if they were your roommates. If that's you, congratulations! You are one of the lucky ones. Unfortunately, this woman cannot claim her roomie experience with granny to be a pleasant one. This thread was posted to Reddit's r/pettyrevenge subreddit by u/fairy_rat333 ,…