speaking of escapees in cars....
I once bought 4 live mice to feed my snakes. Stopped at another store on the way home for 5 minutes, but one of the mice was some kind of freaky speed chewer and chewed one of the box's air vents open. Needless to say, when i lifted the box up when I got home - it was sickeningly LIGHT - all 4 were gone. I found and caught 2 when I saw that, didn't find the other 2 but figured that since I'd opened and closed the door a couple of times, they were gone.
The next morning I found one just chilling out on one of the car seats... snag. Ok, 3 down, 1 lost. At least I didn't pay for 4 feeders and take home NONE, right?
Heh - then, 2 days later, I was driving to work and felt something brush against my leg (I have an obscene number of keys and keychains, thought it was just that dangling down from my ignition) - went to scratch my leg and felt something fuzzy - then felt something on my foot - the last mouse, decided to come out and sit on my foot!
So I got my money's worth after all. Lucky!
Well, not for them!