The day they won the title at WHL (03-04, same day we beat Chelsea 2-1) sums him up best.
It's the 90th minute of this massive game and Arsenal are 2-1 up away to their local rivals. Whilst waiting for a corner, Lehman for no good reason whatsoever decides to pull Robbie Keane to the ground. Spurs get a penalty and draw 2-2. Lehman refuses to celebrate with the other players and simply marches down the tunnel, refusing to shake hands with 2 spurs players on the way.
Fantastic keeper in his day mind. Big reason why Germany overachieved in the last 2 tournaments.