[Daboo]

^^ as in 3 hours and 30 minutes.. HOLY CHECK!

Leaving a lost game is just much better than prolonging something that is over..saves time for both of you, and you'll be able to play more games. But of course if you have a chance then stick no matter what the opponent tells you.
If the guy is trying hard to make a comeback then send your scvs to all the possible expos/mains, and build a supply depot there, so he cant take a base..and if he tries to you'll know what he's doing.