i'd say only "force" your dog to get high the first time, cuz he doesn't know what it is and all and you can't describe it him so he can make up his own mind.. but yea, get him high, and if he likes it, i'm sure he'll pick up on it and "ask" for it next time so to speak... if not, then he obviously doesn't want it, and just like it's a human's choice, it should (if anything) be the same, and be the animals choice whether or not they want their body/mind affected like that..