One that plays Warhammer and Mordheim with Skaven, just because he knows they're overpowered.
He's clueless about strategy... and his Doomwheel couldn't have crushed my Lord in the first move! :(
Anyway - don't play Warhammer or Mordheim against a Skaven - they'll overrun you and swarm you before you knew what's happening!
Go for the psychology! They're weak in that area!