Mellow Ezlo
Spoony Bard
Although the reasons are fair enough, there are lots of constant self-put downs interspersed with the explanation... a little overkill. Could be an attempt to deflect suspicion.
Ya, it kinda fits under "appeal for sympathy" (which Rep led a successful scum lynch for in an earlier game). Basically, what that means is that a mafia member gets put on the chopping block and tries to use pity as a way to deter the voters from going along with their lynch. In this case, Sheik is undermining his own skills, perhaps as a way for us to feel pity and consider removing our votes, which is a common defense for scum in particular who desperately want to stay in the game. It's sometimes hard to come up with a lie, or cleverly twist the truth, so scum will often use this tactic when they don't want to be lynched. It's easier to defend yourself as town because you don't need to be deceptive, you just say the truth (most of the time). Sheik's defense seems really desperate and sort of thought up on the spot.