The Runaways

What if Katniss and her family, Gale and his family, and Peeta and his brother ran away from District Twelve after the Victory Tour?

For this fic to be plausible, we need to assume:
Katniss is 'selfish' enough to choose her own safety over that of other people (which she isn't because she's awesome).
Gale doesn't know about the uprising in 8.
Peeta tried to get his family to come too but only got his brother to agree, and he is okay with this.
Haymitch doesn't do anything to stop them.
President Snow has not electrified the fence (but let's assume he did electrify it that one time) and has no cameras in the woods.

So if we can accept all of this, let's do it!