Back home I'm a well known (in certain circles) alchemist, it is my business. Usually I charge $15 per dose of my hangover remedy, but considering you were 1. Highly entertaining last night and 2. Drunk to the point that you were passed out outside my apartment, I figured you could use a dose on the house.
Also, I'm trying to get my alchemy up and running around here, too. Right now my spread's just in my apartment, but I'll be putting something out back for me to work in easier soon.