another example of "what goes around" years ago when I was much less confident, i got a phone from a customer one saturday, saying I had scratched his window, I was very suprised and quite stressed, I promised to call round the next morning (sunday), when I arrived the customer showed me a small scratch, in the shape of a "nike tick", I explain to him that I couldnt have done it, as on those windows I simply squeegeed straight down, he was having none of it, so anyway I told him I would try to remove it (impossible) I tried for 45 minutes, on the following monday I phoned a local window company asking them how I could remove the scratch, they told me it would be unlikely to be able to remove it and they confirmed to me, that I was unlikely to be the cause of it, anyway next time I called to do the windows suprise suprise, the guy had new windows on all of the house except the one he claimed I scratched, it looked very much like he wanted me to buy the windows for that one, anyway we went our seperate ways! but today I was working next door, his wife came out and asked me if I could fit them into my round, I politely replied "I dont think so" she then said "Im only next door", I replied "I know I used to clean your windows" she said "I dont think you did", I said "scratched window!" she replied "oh yeah!" she then said "can you do them then?" I said "no sorry".
so they tried to pull a fast one on me, but over 3 years later, no window cleaners will touch them, justice I think
oh yeah as for the scratched window, I spoke to the previous owner to that house recently, and she told me the windows are around 100 years old and they had been scratched for years,