Funny old world ain't it?
Had one a couple of years back ... foreign accent, Iranian I think comes up to me and says "you do my windows!" (like a command, not a request)
I offer to come over and quote and she says "no, no I pay £10" (this is for a big thirties, extended private semi with leaded transom bayed windows at the front)
I say, "no ,,,, I'll give you a quote."
"Don't bother" she says.
Two months later:-
Her "Are you the normal window cleaner?"
Me: "No, I'm the retarded one!"
Her "Eh? Anyway, you do my windows!"
Me: (Shortened version) "Ok, £20, regular monthly, £30 first clean"
Her "No, no! I pay £10!"
Me: No madam, with those leaded transoms and third floor extension my price is very fair"
Her "Don't bother, I find someone else"
Two months later
Her "You, Mr. Window cleaner, I pay £20; you do windows now!"
Me "You're very rude and I wouldn't do your windows for £100!"
Her "Yes I am! Don't bother!" Glad we got that sorted.

Anyway, Starion who hides somewhere on this forum has more tolerance than me and does them for about £25 and tells me she's as good as gold!
So I trained her up and he gets the benefit.

No hard feelings!