Hi, Unknown Visitor, the story of Vestboy has been told in full in the Hotel Bar so if you want a word by word account you need to go there. (Starts at Post 442 and continues for a long while)
For those of you that can't be faffed to go there here's a short symnopsis. Born of a single parent in communist Eastern Europe he was separated from his twin sister at birth. She went to live with a British diplomatic family and had a wealthy upbringing. Vestie stayed with his mum and moved to England for safekeeping.
Vestie's mum, who had great skill in all things using threads, needles and material found she had been given an unusual gift of some top secret ex military laboratory fabric.
She made a vest for her son and he, over time, learnt the secret of scratch and sniffology. The power of releasing the zeitgeist of a smell and bringing strong emotions into play in other people.
Vestie continues to collect stains on the vest so that he can scratch them later to deal with unusual situations.
Of course, Unknown Visitor, this has meant that the vest has had to grow over time and now reaches beyond floor level to drag along like Miss Haversham's dirty and worn wedding dress.
Oh, and if you are wondering 4+(5x6)+6+2=42