I agree, Jen - I completely understand why kitties want to be out in the fresh air and sunshine (or moonshine, even better for their little nocturnal selves), but since we have made them our pets, we took responsibility for their welfare when we did so. It's like having a little kid who wants to do stuff that would be really really fun but not good for them - as a loving parent, you just have to say no. The argument that it's in a kitty's nature to roam doesn't wash, because ANY animal wants to roam - they're animals! Dogs aren't supposed to have the run of the neighborhood, people don't often let their pet birds out to fly around free, and kitties shouldn't be running around like wild animals if you want them to be pets. I know we can't control every aspect of our pets existence, and they die sometimes despite our best efforts at care, but I just get so frustrated reading stories of cats who died because they were hit by cars - such an avoidable circumstance.