"Rookie-2009"

If you got dealt chocolate, consider taking a rest, because your opponent probably has even better chocolate...
If things are going badly for you, don't rush to give up; maybe your opponent will give up first...

If you got dealt a King-King, consider folding, because your opponent might have Aces :D (I've had that happen, and it's very painful!) So the idea is correct. But if you take a rest when you have chocolate, and your opponent has even better chocolate, they'll immediately accuse you of cheating :D

P.S.: It's never too late to give up (c) Alekhine or something...