darkknightrises: if she had asked 4K, and starts to whine and moan, well, 4K is not a lot - so I would cut the loss and kick her out that keep a reluctant cat at home ..
After all, I equate to Singapore $ - 160 S$ = 2 shots ? not a bad deal .. and nothing annoy me than a whining hooker ....
Have done it at times, and went out and spent quality time with Friends .. in Manila, who were more than once surprised that I didn't find silly excuses to avoid them ..
Now, if I had negotiated like, say, 6,000 and more .. then my anger mode will kick in, but, still, I remember that I am not in my home turf, and chalk it up to experience ..
Anything more than 7,000 or so, as a ball-park - I do the '10 questions' Quiz before closing the deal ..
PS: I know guys, who agreed on, say 5k, then kicked the girl out with 3k, and then after a long while later discovered something missing .. and it can include contents of the mini-bar - not much, but when you are paying up when checking out .. well ...
And another guy, remotely known to me, had a girl whining, kept her, and in the midnight hour the security had called and asked him permission to release the girl (like they do in Exec Plaza) and with his sleepy eyes had looked at his watch to see the time and guess what ? the Watch was MIA - lesson learnt .. says he .. don't under pay or hold a whining FL ..