I have no idea. As far as I am concerned, you drink them in strength order - beer first, then wine, then spirits, then radiator antifreeze. Okay, maybe skip the last one...
I do, however, know the one about beer and marijuana (although, unfortunately, I learned it _after_ finding out the hard way): "Grass then beer, you're in the clear. Beer then grass, you're on your arse." In my case, however, it was Opel Nera black sambuca, which is one of the least attractive beverages in the world when it comes back up. Vomiting what appears to be tar is an unpleasant experience.
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