A DSM-V of champion disorders - Lee Syndrome isn't the only one

Lee Syndrome - Compulsive casting of an optional second half of an ability, even when the effect is detrimental. (Esp. a mobility spell.) Pantheontitis - Over-reaching use of long-range mobility ultimates. Lissandraphy - Timing out the second cast of a spell when it's too late. (Esp. a mobility spell. ) (Also called Lissandrome - not to be confused with Lee Syndrome, a somewhat opposite condition) Luxprosy - All you want to do is save your teammate from Requiem, but they run away from you... Asheberger's Syndrome - Last hit a minion... Now I can't crit anymore. :(

More?

EDIT: Jarvantagonism - Manipulating the placement of other champions and/or terrain in a way that is detrimental to your team overall. Two versions are acknowledged, troll-type and impulse-type. Ezrealysis - Using your ult to farm a minion wave just seconds before a teamfight... Blue Ball - Giving a powerful buff to your primary engage champion at a time when they are not the least bit open to going in.