Murphy's Law

If there are two or more ways to do something, and one of those ways can result in a catastrophe, then someone will do it.

Conclusions 

 ♥If there is a possibility of several things going wrong, the one that will cause the most damage will be the first one to go wrong.
♥Corollary - If there is a worse time for something to go wrong, it will happen then.
♥If several things that could have gone wrong have not gone wrong, it would have been ultimately beneficial for them to have gone wrong.
♥Anything that can go wrong will go wrong.
♥If anything can't go wrong, it will anyway.
♥If you perceive that there are four possible ways in which something can go wrong, and circumvent these, then a fifth way, unprepared for, will promptly develop.
♥If everything seems to be going well, you have obviously overlooked something.
♥Everything takes longer than you think.
♥You never find a lost article until you replace it.
♥If nobody uses it, there's a reason.
♥You get the most of what you need the least.
♥Nature always sides with the hidden flaw.
♥Mother nature is a bitch.