I haven't read this in years. I actually forgot about it around chapter 4 or so, so seeing it all (so far) here was one hell of a nice surprise. I think this is the first manga I ever read that had a trap in it, let alone an honest one.
The barkeep seems like the kind of wildcard who cuts the fuel line in her friend's van while they are parked in a public place just for laughs. I like her.