Oh gosh I remember seeing this some time ago, how scary! Cats have a habit of getting into places they shouldn't.
I will never forget my friends cat taking a trip to school with us to drop the children off He had basically gone to sleep in the basket at the bottom of the pram, she only realised he was there when she took her daughters bag out. Thankfully we got him home safe but it always makes me laugh when I think of it.
Only thing to happen to any of mine is the usual of getting stuck up tall trees!