Enemies are able to battering ram/melee up terrain. So if you're on a bridge above them, they can attack you even if they're way below (2+ levels) you.
Enemies will get an attack of opportunity without it saying they will. It won't have the indicator for the attack when attempting to move. They can also do it when you're stealthed next to them. This happened to me when I was stealthed, and it stopped me from moving with the popup "attack of opportunity" even though the enemy didn't attack.
Looting an enemy with a non-created character (Lohse in this case) and switching to another character before the loot window opens doesn't let you loot the enemy at all. It just pops up with "Already in use", no matter what you do (loot someone else with that character, etc).
