Everybody has something that they don't like doing right? Maybe wrong, I don't know. Anyway, there are some subjects that people just can't get themselves over to doing. Like maybe you can't pull yourself into roleplaying a teenager no matter what their stance is, maybe you can't play animals, maybe it's something else, but you just can't bring yourself to do it. It just feels weird, awkward or wrong to you. For me, I can't play as people who are exist in real life. I can make references to real life people but I cannot play them, that includes cannon characters well known actors play. Because I don't know them, I don't think I can play them properly and for me I get creeped out. It's not to say people who can play as real life people in roleplays are bad, I just can't do it myself and I can't do a roleplay with them as a character. To me, it invades that person's life, and I can't ever bring myself to pull it off. What about you? Got anything that you just cannot do in a roleplay?