The problem, is, Free, that lighters are herd animals.
They have a built in instinct to search out their fellow lighter - you know, the one you lost last month! - and you'll find that, one day, when you're tidying up, or summat, you'll uncover the legendary "Rassemblement De l'Allumeur."

Then you shall rejoice, as you find all 8251 lighters that have been 'lost' in the house, since the time it was built...