I used to call these PNPCs (Player Non-Player Characters).
While I can't compete with that last one, I had a Shadowrun GM who had to have her pet character from a prior campaign tag along constantly. She came along constantly because she had some skill we didn't have.
With that in mind, I was determined to get a rank in every single skill (save for the magic skills). After I did, the GM pulled that one again. I told her that there was no need 'cause I had a rank in every skill in the book. She informed me that this was a special homebrew skill that wasn't in the book.
Needless to say, I wasn't a happy camper.
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Trampas Whiteman ---DragonHelm---> 
RPGs are kind of like ice cream. We may not all agree on the particular flavor, but we all like ice cream.
I disagree with the assessment that Mialee is a woman. That's a man, baby!
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