Talk:Hellhound/@comment-216.251.30.57-20151205171212/@comment-27352669-20151208063903

From what I've read, dogs like belly rubs because

1. It's a place they can't reach very easily themselves and

2. It apparently just feels good, but they only let those they trust give them belly rubs.

As for the ear scratches, apparently a dog's ears are one of three major nerve centers in their body. When you rub their ears, it stimulates two glands that release endorphins, a feel-good enzyme, that relaxes them almost like they're getting high.