I know it was mentioned that Slimer was a human in his lifetime, but what if he was a greedy dog? #ghostbusters #slimer #headcanon #idea #theory #canine #ghost #dogs #hotdog #doguedebordeaux #cartoony #sketch #animals #artistsoninstagram #therealghostbusters #80scartoons #digitalart https://www.instagram.com/p/B_BXFryjWrk/?igshid=1c6kjlgm495ft