I got a nice big posh house, didnt think much of system but said windows were good after we'd done them.
Couple of cleans down line i get a call (posh voice)"hi we're going to leave the windows as of now, youve always done a wonderful job and we're very grateful but we do live in a private house (private house? arent they all?) so we wont be having them done any more and dont like the windows being left wet"
I was driving at time so said, "ok thanks, bye" and put phone down.
Whats their problem!