In relation to some of the earlier posts...when a GM is too polite to let me know when my character is too OP. Underplaying certain character in such and such ways always make them highly out of their original character...I do have other character ideas saved up, I hate being trapped with a character out of design even more!

An RP change from sandbox to fandom...when you signed up fir the sandbox, and know next to nothing of the fandom. You're always left feeling stupid.

As well...when your GM doesn't want you to do something, but skirts around the issue and tries to make it seem like what you're doing with your character is out of character. It's more rude than polite, I know and can take suggestion and criticism, but if you want something done or not done...just let me know! ARGH, please!