It really depends on the type of encounter. In the past we've:
1) Run away if we were hopelessly outgunned by creatures that are unlikely to be kind to enemies or are cannot be bargained with. He who runs away lives to fight another day.
2) Surrendered or negotitated our way out of it. One time we even joined up with the other side to save our skins. If you can't beat them, join them. Then bring them down from within.
3) Tricked them into fighting each-other, or going off in the wrong direction, or thinking we were more powerful than we were. They went that-away.
4) Called in divine or outside assistance- rarely. This could consist of both our god, or a god that was opposed to them
![Devious :] :]](http://www.enworld.org/forum/images/smilies/devious.png)
Say Vecna, I dare you!
5) Valiantly rushed in for the TPK, only to somehow miraculously through good tactics and good luck survive or not.
6) Burned that wish, fates card, powerful magic item. You're carry around a WHAT in your bag? Retributive strike, anyone? Nothing beats the ring of wishes that everyone in the party thought was a ring of dellusional wishes.
7) Descended into inter-party or GM-Player battles - very rarely. When the supply of caffeine and sugar is running low, it it late at night, and your 20th level party is on the line.
8) Even more rarely. Deus ex machinaed our way out of it by the GM. On those rare occasions when the GM takes pity on the party for a situation beyond their control.