Cole was arguably the best LB in the world when he left, and Arsenal and Chelsea were direct title rivals. None of those other names were as important or left at a time when the rivalry meant as much.

You can but it’s risky - they have Dementors roaming along the stands looking for people who don’t fit it. If they catch you they’ll give you a Dementor’s Kiss, which effectively means your soul will get sucked out of your body.