I sure don't. Maybe someone can explain to me why they would knowingly play Russian roulette with their beloved pet's life?
Not a day goes by when I don't have to talk to, and attempt to help a hysterical cat owner who thought is was a cat's basic instinct to run free outdoors, then wonder why it was hit by a car, mangled by another cat, dog, raccoon/fox/cougar/bear/eagle/owl, shot/kicked/poisoned by nasty human. What the hell did they think was going to happen?!?!?

These are not kings of the jungle, and we do not live on the savanna where they are top of the food chain. These are pets, and have virtually no defenses against city (or country, for that matter) dangers. Sheesh. Outdoor cats live an avg of 5-7 years. Indoor cats live an avg of 12-20 years. Much healthier years, too.
Those of you who keep your cats indoors,
bless ya. You know your cats are perfectly happy inside. For those who think it is wise to let your cats run free, please come and work my helpline, even for one day. Listen to the calls for help from people who thought they were wise too. Listen to the preventable tragedy. Come on...just one days' worth.
Whatever your preconceptions, cats are indeed perfectly happy indoors. There is not ONE argument in favour of allowing them to free roam outdoors. Not one.
Sorry, but this is my passion, born of my own feelings for my cats, and many yeas of listening to and treating
preventable suffering.
Spay and neuter. Proper diet. Keep them safe indoors (or at least leash-train or build a cat-run). And have a good, long, healthy life with your beloved cat.

/rant.
Sherry.