It is all right for the lion and the lamb to lie down together if they are both asleep, but if one of them begins to get active, it is dangerous.
The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair.
I was in love with the idea of being in love with a woman way before I was actually in love with one.