I'll take this one:
1. His mannerisms when he's winning vs the sulky little biz natch he is when he's losing
2. The outfits...the freaking outfits, you just lost an important game...don't come to the press conference like you're trying to play big bird in a live action adaptation of Sesame street
3. Inability to humble yourself, "show me a good loser and I'll show you a loser" - there's more to being a good loser than just accepting you lost.
4. Delusion - "they couldn't handle my aura"...nah they couldn't handle paying you to have a rookie outpace you in grasping the system
5. The freaking outfits...stop coming out looking like you're trying to transition to an old black lady named Ethel.