Guys that contact you and ask vague questions like 'What can I get in 30 mins?' Well what is it that you want for a start?!?Worse still are the guys who ask you how long they should book and what is the difference between 30 mins and an hour... 
Yes general vagueness...Such as "Are you available today" or worse "Are you available next week" Then when you give them a time they can't make that one! Unless they've got the whole day/week free (which is highly unlikely) why don't they just ask for the time they want to come I can then either say yes or no or they can suggest another time to suit them.It happens so often I just don't get it 
Oh god yes 'Are you available next week?' Well for a start my availability is pretty set and written in bold i.e Monday 11am to 7pm,Tuesday 11am to 6pm etc etc.Really do they want to rewrite your entire weeks rota for them?It pisses me off full stop when you then have to write back 'Well what day,length of booking and time are you thinking of?' only for them to mention a day but then not a time..like pulling teeth.Decent clients tend to tell you all that in the first instance.Not rocket science is it?
Yes like pulling teeth!
A booking request today from someone I've seen loads:
Him: Hi are you around next week?
Me: What day and time are you wanting?
Him: I'm hoping for Mon afternoon
Me: Yes that should be ok
Him: I'll confirm asap Mon
Me: Ok you need to let me know before 10am, shall we say 2pm for an hour?
Him: Probably later after 4, what will you be wearing?
Me: Ok I'll save 4pm for you just confirm Monday morning before 10am. Seamed stockings heels...
Him: Lovely xx
For fuck sake all that could have been arranged a LOT easier if he had just said the time he wanted in the first place!
The thing is though, he's actually a really decent guy when he does arrive, I don't know why he has to make such a big drama with the booking arrangements!!