I'm sure you all have already experienced it once! If your opponent is in disadvantage, he fakes a network drop. Everyone knows how to do that. Alt + F4, via Task-Manager, cutting the connection to the Router.
In my opinion there should be a punishment therefore, if it's "proved" or obvious that he did a drop on purpose.
Best example:
Playback @ 5:10
TEL against sBaffo, he was in hurry cuz his parents could arrive every min (he told me before we started playing) and he was in a disadvantage. Failed the sheep, prolly saw the doubleskunk incoming and I still had 3 worms with good health.
This should be worth warning him, or at least a text with something like 'bad loser' in his profile, below his avatar where everyone can spot it in forums. :b