from Wikipedia:
For example, NASA proscribes:
"Use the approved tool for the job. Makeshift arrangements such as the use of a screwdriver as a chisel, a pair of pliers as a wrench, a wrench as a hammer, or overloading a wrench by using a pipe extension (cheater bar) on the handle are not to be employed." [4]
Guess it's time to reorganize my toolbox...