Today, after only having to pay for one drink all night, I arrived at the conclusion that drunken salarymen are the best thing about being in Japan.
Also ended up at a food stall (yatai) in Nakasu, Fukuoka's red light district. Turns out it serves as an off-duty area for the local prostitutes. My Japanese vocabulary has been usefully expanded as a result.
Edit: None of them could pronounce it properly, but there are now people here who know that the word, 'blumpkin' exists in English.