I have a terrace of four houses - all neighbours/friends who all pay for each other when not in. Anyhoo I do all the fronts and then drive round and do all the backs.
As I finish the fronts lady at 1st house asks who hasn't paid so that she can pay me all of them. I tell her one has paid and so she says when I get round the back she'll pay for the rest when I do hers (last as the backs are done in reverse order to the fronts.)
I do the backs - forget to knock on her door and drive off - that was last Friday!
She phones today to say she was wondering why I didn't collect. I just forgot and in the circs am going to pop down as it was my error.
How many other times have I done this!?

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