I've got plenty of alcohol adventures, and when I have time I'd love to regale them here, but to be brief and to carry on this current topic, here are some places I've woken up after a good night's drinking:
In a hedge
In the house of someone whose name I don't know (this happens a lot)
In a club
In Cornwall
On a train going to Glasgow
In a hammock, outside
In the lobby of a hotel
In Greece
And that's only what I could remember right now.