In principle, I don’t like to buy anything spontaneously, just because someone selling something has knocked on my door at a time when I’m in.
I prefer to know what I want, then shop around to find the best supplier, then buy it in my own time.
I don’t buy tea-towels on my doorstep. I don’t buy fish. I don’t even give to charities other than the ones I already support.
A couple of weeks ago, a double-glazing salesman knocked on the door. Unusually, I did actually want a quote to repair some double-glazing. OK, I said, I will let your chap come round and quote. We agreed a time of 4.30 pm that afternoon. The guy didn’t turn up.
Two weeks later, the double-glazed porch door fell off its hinges.
I can tell you that the double-glazer who fixes the door will be any firm but the one who didn’t turn up when they said they would.