I think they didn't tell the end purchaser anything. So really, innocent victim is approached by two really, really tweaked out dudes who very strongly suggest he goes and makes a buy from their dealer-friend. Two dudes are awfully nervous, even for tweakers, and sniffling more than usual.
So to get them to go away, he agrees to make a buy.
Did he:
a) actually go buy some, thinking it must be some awesome shit
b) say he did, and that the stuff was "fine".
Even if you knew nothing could survive time in the bubbler, would you want to get involved?