friend plays after disconnection - % for him?

[Madd]

Say, you start to play a set of sitngo-tournaments. In level 3 you get disconnected. You try to log in again, but you fail. You call a friend who logs into your account and plays the tournies for you.
Is there a general consensus about the % of the winnings your friend gets?
(This is just a hypothetical question as I was able to log in again.)