Originally Posted by
HillRider
Murphy's Law of Bicycle Mechanics: If you bring N tools to the job site, you will immediately need N+1. As soon as you get that tool, N+2 will immediately be required.
Corollary: No matter how many wrenches you bring, the one you need will be one size larger or smaller:
And if you have the one wrench larger and the one wrench smaller, the one you need will be metric (or english standard).