How about when traveling on earth? Sadly as the saying goes, "sometime the earth will be hit by a giant asteroid, (again)". Riding with that threat can be your ticket to a serious life threatening extinction event.
Sure, at first sight of trouble a twist of the throttle and flipping the bird will get you out of a jam. But what if, it was a really big asteroid? and it got close enough while you were unaware and you're about to get in a situation.
A Nuclear Armed Space Missile is a perfect tool to keep at all times!
Only thing to worry is, a Nuclear Armed Space Missle miss-fires. Or the trajectory is wrongly calculated! Better yet, it fragments after you hit it and detonate the warhead and results in a rain of smaller meteorites and nuclear fallout?
So for those of us not lucky enough to have a state laws on legal earth evacuation pod carry. Which type of MISSILE and WARHEAD do you carry for defense against asteroid attack? Single Stage Thermonuclear? Fission? Fusion? multiwarhead? I'm interested in what type of defence you guys dig!
Seriously. We have been hit before, it is only a matter of time.