Yeah, you can't really blame anyone but the users for what they put in their body. I mean, does anyone think Dick put the stuff directly under her nose then punched her in the gut to force her to inhale? No. He might have inticed her, but a person with a substance abuse problem who puts themselves at a party with a bunch of people who are known to use the substances the person is trying to avoid has much more ownership in the problem. I mean, I've had friends in recovery who've been in a fragile state where they can't handle even being near substances, but then it becomes their responsibility to investigate situations before they get into them to ensure they're not endangering their sobriety. You can blame it on the dealer, you can blame it on Andy Dick, you can blame it on the rain, but in truth Hartman's wife was an adult, who made the decision to hoover that shit up.
From personally observing Andy Dick's "work," all I can say is that he's a negative force in the universe, and that I enjoy the idea of Jon Lovitz beating up anyone - but especially Dick. Lovitz really should have worked in some comedy/endorsement by shoving an assorted sub with extra secret sauce into Dick's mouth at the end though. That would have been quality.