Not so random, but totally off-topic ...
My oldest choc lab, Houston, finished his testing yesterday and is now certified as a therapy dog. This means I'll be able to take him to visit pediatric wards, rehab clinics, nursing homes, schools, children's homes, etc. And once we get that Model X, he'll be able to travel in style. Until then, he'll have to do with the Prius.
It's not so much about just people enjoying petting a dog. It's about kids forgetting they have cancer for awhile, seniors using their arm to pet an affectionate animal, kids struggling to read relaxing while they read to a dog, rehab patients throwing a ball just to have it brought back.
And if YOU have a dog who is friendly, calm, is okay with lots happening around them (wheelchairs, people yelling, too many kids) - pm me and I'll give you more info. It's not a lot of work to get your dog through the testing, IF you have a dog with the right personality.