When I read the title of this thread a totally different image went through my head. A long time ago my wife's brother asked thier dad if he could borrow his car to go on a date. Dad said you have a good car , take it. He said but my car stinks real bad I can't take it on a date. Dad says let's find out why it stinks. They opened the hood and there was a dead cat laying on the intake manifold. Dad tried to pull the cat out by the leg and the leg just pulled out like an overdone turkey drumstick.

In theory, there is no difference between theory and practice. In practice, there is.