Why do they think we are all drunks
It all really boils down to the 'customer's perception of window cleaners'.
All the window cleaners I know, without exception (the one that spoilt this has since stopped window cleaning), are all decent hard-working people; some well qualified in other areas; and many of whom have strong religeous beliefs too.
None of them are drunks or 'burglars in disguise'.
I think we have to work hard at presenting a better image and go that extra mile to beat the stereo-typical image of a window cleaner.
If only to satisfy our own self-esteem.