iunno, that doesnt prove much, since seth was a pretty cool guy.
i say when you were traveling back to Shady Sands after rescuing Tandy you camp out one night and she has too much firewater and throws up in her bedroll.
guess whose she uses after that.
yup. dogmeats. her son's a strong, stupid scrapper, so it works ^^
PSA: i love dogmeat dearly, but ALL dogs are shit for brains.