Jeremy Zawodny did a post recently about pop culture that really just made my day. From urban dictionary:

A phenomenon which typifies Murphy's law. The absolute worst possible outside circumstance which can and will negatively affect the current situation. Greater than minor inconveniences, this is the sort of instance which all hope of success is lost.

The example that goes with this is priceless:

While driving to a friend's wedding, an awkwardly positioned nail in the road hits your front tire and pops it, which causes it to fly back and blow out your back tire. The resulting blow-out causes you to spin, knocking your way across the road and into several other cars, which bounce you back into other cars, resulting in a fifty car pile-up which results in a massive explosion. In spite of all of this, you still survive, and as you are crawling out of the fiery wreckage you look up to the sky, only to see a ball of pain and doom, known among as a meteor, flying out from the sky, headed directly for you = Oh Shit...Meteors.

Too funny... I'm definately adding that to my list of things to say next time its appropriate!