I had one refuse to pay me £20, took me 3 years of waiting until I was asked to price the house who's garden backs onto theirs.
I quoted low to get the job, and when I was sure no-one was around at either house I snook through the hedge and did a number 2 in the offenders swimming pool, and put the cover back over it!
Another 1 has owed me £33 for ages, she refuses to answer the door, and even turned ands walked out of the local shop leaving her basket of shoppin gon the floor when she saw me.
I do all the houses on the estate where she lives (about 30 houses), and alweays par over her drive for a few hours while I do 10 around hers.
Anyway, a couple of months ago she came out and wanted to pay me so that I would move my van. I refused payment and asked;
"have the debt collectors who bought the debt from me not collected it yet? I bet the costs are racking up on that!"
She must be dreading every knock on the door now, even though I have just written the debt off. she will forever be wondering.