It's like watching a happier version of Red Foreman with hair (but the same body language) the voice of Shaggy from Scooby Doo :). That said, hard to believe he was over 60 here! Way to go first ever Stoner in a Children's TV Show :D.
You know that that is simply wishful thinking by those who are potheads? There was no undercurrent of that being the case, Shaggy and Scooby were depicted as having bottomless legs in regards to food.