It's not that he isn't supportive, but the first few times he "mentioned" my hobby, I showed him the garage with ALL his tools and even said (kidding, of course *wink*) "You can sleep here too if I hear another comment about all my tools."
Or sometimes I would get that look from him - you know the one - 'do you really need (fill-in-the-blank)?" And I will tell him, "What's that you would say...oh yea...right tool for the job."
And an oldie, but goodie: "How come we always double the budget on any project you do...oh yea...that's right...because there is always a tool you need to buy."
But to be fair, I never let him use my tools even though I use his. I used his table saw and I told him that it needed a new blade cause it cuts worse than my cake leveler! He ran out and got a new blade.