You offered a number, knowing hers would likely be higher.
Vs. asking "how much is your fee for x?"- granted, this is a hypothetical since only a newbie doesn't know it is tricky to ask something like this without ever meeting.  

Worst thing to even suggest to a woman, especially if you're about to have sex with her. "You think you're worth this, but I think you're worth less"

Normally it is protection against LE, but this indicates another good reason.

Follow the rules, and you won't get burnt.

But completely fucking unnecessary, just saying.  

Quit being so decent. I like you more when you're a dick. Just kidding, I like this side too. ;

and your opinion is the same as mine as well.

To tell the truth BMF didn't really give us enough information for us to really judge one way or the other, but most likely he did that on purpose as the entire story most likely would not support his argument that she is BSC

The facts that we do know is that she offered a "service for a price" he countered with a different price, she took issue with this and he now claims "he was not negotiating"

Whether one supports negotiating with a hooker or not, the fact does remain that he did negotiate with her, or at least he tried to. Until the OP can at least be honest about that part of the equation, I can't bring myself to jump on his bandwagon, but I am glad he ended up finding what he was looking for.

As for her going either Ape Shit, or Bat shit crazy on him, well some hookers aren't too well balanced, this is true. but I've read some of the downright nasty shit that johns have written when they don't get their way, so I'll reserve judgment on that part of it as well, unless and until I see exactly what she said.

Do you have any idea how hard it is to be a HCH every minute of every day?  

And the girl in question lost a potential client after her rude behavior.

And the girl in question lost a potential client after her rude behavior.

See, you wanted "ABC" for XX, and she does "ABC" for "XXXX"-  
Which you are unwilling/unable to pay.
Therefor, you are not and would not be her customer.

There are many out in the marketplace that will deal with customers like that.

It happens at the very highest and very lowest kind of transactions. Whether it haggling over a fifty cent bracelet in a Mexican Flea market or negotiating a multi billion dollar merger on Wall St., negotiation is a fact of life whether hookers want to admit it or not.

Where most of us took exception with the OP is his denial that he was indeed negotiating in the first place. He claimed he was not, the rest of us called Bullshit. Please don't confuse that as a tacit acceptance of the hooker commandment "thou shalt not negotiate"

I don't know for a fact whether or not she needlessly went ape shit over this or if the OP was exaggerating, his credibility is a bit suspect, but if he is telling the truth about that, and he may very well be telling the truth, I would have to agree with him that she could have handled it much better and that it probably was "her loss"

Speaking strictly for myself, and first stating that I don't haggle hooker rates here in the US, I avoid like the plague Hookers that go BSC over the very mention of negotiating. Now please don't misread me. I don't avoid hookers that state their prices are firm, who I avoid are the self absorbed, "my shit don't stink" hookers who go Bat Shit Crazy over the very word "negotiate"

I don't like inflexible people, I negotiate in my business all the time and if I can deal with people "insulting" me by offering to do business with me at a price where I would suffer a multi million dollar loss, forgive me I don't want  to hang some guy for offering some hooker a hundred bucks less than what she is asking for.

I get it to a degree with the gals. They perceive a loss of income so at least they have some financial stake at risk.

You lost her when you haggled.

I get your point and do not disagree with negotiating.   Some guys don't bother and some ladies don't like it.  

Because YOU/I get a deal with a gal...then those guys who don't ask for "the deal" have to listen to her cry that her rent is overdue...and they'll give her a tip on top of everything.

You know I like both sides, I was just yanking your chain. You being a dick and me being a MHB is hard work. We need breaks just like anyone.

Most of these guys have been so browbeaten by years or even decades of sexless marriages, they are simply used to blindly following the orders of women. I mean look at some of the manginas on this and every fuck board you have ever been on. Some of these guys can't even fake having a set of balls on an anonymous internet board.

The guys that support "no negotiating" not just as a personal choice but as one of the many "commandments" of hookerdom are the very same guys that fall in love with hookers that could care less about them, suck up to every provider on the board, and constantly try to "out gentleman" every other spineless wimp who claims to worship any woman who will suck a dick for money.

Here's my personal commandments.

Way too many other hookers willing to take my money.

Just like she has many tricks to choose from. We ALL have choices, tricks and hookers.