I wouldn't! At all. I cannot run fast or fight, I'd be a goner immediately the zombies or aliens or whatever descend. When I watch a movie of tv with this theme I can't ever keep up with the characters when they make a quick plan about who is going to do what where, and when they give each other silent hand signals eg going into a room they think is occupied I'm just like huh what do you mean? 
If you reckon you'd survive a good while if the shit hits the fan, what are your best survival skills? Are you good at going with the flow, being flexible, thinking quickly on the go?