A client who I’ve seen once before called saying he was nearby and wanted to be seen “now” . I said I can be ready in 15 minutes. He said, can’t you see me in 5 minutes. I said, no, I need 15 minutes. He said (wasting more time), can’t you see me in 10 minutes.
He said, “okay in 15 minutes I’ll let you know if I’m coming or not”. 
I said I would need to know for sure if he was coming or not otherwise I wouldn’t be getting ready!”
I like to have 15 minutes to quickly freshen up and change as I don’t sit around in my lingerie.
So annoying!

OMG the "now" brigade!
Totally dillusional and think we sit ready and waiting just for them to call or you are their plan b/c when they've been let down and got a hard on.
I hate being rushed, puts me in a bad mood so I just usually wind them up then block em.
Rude and entitled in the extreme.

I am getting a lot of this too.
I don't know if it's attention seeking because they are skint and bored or what but it's very annoying.
I too now block if they've asked something specific then read the reply and disappear, just rude, but I find rudeness is becoming more commonplace.

100%. I never got timewasters in central London before- tw would always have reports on CE. Its like there's a whole new spate of timewasters now with no reports against their name. You're right it's so bloody rude. If you've changed your mind- fine. Just text me back.

When they sound half asleep on the phone (because they’ve literally woken up) and half arsed mumble, ‘Are you available?’. I find that so rude.

When you attend an outcall and they don’t even offer you a drink of water.

My newest ick is clients asking me for drinks like you just walked past the bar of the hotel mate. Get your own drink. I’ve not just been to Asda and got my tour supplies to then give it all to you !

You make a very good point 

When you attend an outcall and they don’t even offer you a drink of water.

I agree with this, although like Mirror I wouldn't accept it and I take my own water bottle with me. It's basic hospitality to offer if you're the person 'hosting', for want of a better word.

I did a three hour outcall on Monday evening and got offered precisely fuck all, plus the bloke vaped throughout - I actually left even though he wanted to extend for another hour. I also remember a long outcall I did over at the arse end of Canary Wharf which involved leaving late at night with just over £500 in my bag and being amazed that punter didn't offer to get me a taxi - again I wouldn't have taken it, but every other time I've done similar I've been asked (and that's when I've been in the middle of town).

I sound like my nana, but manners seem to have vanished altogether.

The ones who ask you to pick up booze on the way to them outcall with your own money. No mate. Send me your money that you would buy booze with then I happily make a pit stop with the cab to get the booze you want.