His body warned him several times that after several years of sniffing nitrous oxide, something was wrong, but he just kept right on inhaling. Both he and his ‘fiance’ have been inhaling the chemical even just weeks ago.
Sometimes you can’t judge a book by the cover, but sometimes you can. Look at his slovenly appearance, that ratty, uncombed beard. Someone devoid of all ambition.
They own four large dogs. Most likely, he will need to sell them all, since he can’t take them for regular walks. This is the kind of drug abuse one used to only see from teenagers. It was called ‘huffing’ back then.