I got stuck in one of the Liberty Of London dresses earlier this year. I grabbed a medium according to the hanger and it was actually an XS! I got into the dressing room and was like WTH?! Then I kinda started to panic and it was one of those "get this off me right now or I am going to scream" type things. I finally got it but I really thought I was going to have to rip it or something.