Two years ago my fiancée and I, newly engaged, moved from London to Sussex so could study for a masters in experimental psychology. We were struggling to find any suitable flats in budget and on our third trip down to view houses were ready to give up and look elsewhere. As a last ditch effort, we had emailed a private landlord on gumtree about a flat that looked totally unsuitable but had no reply.
Before our final house hunting trip down there, I had been googling jewellers in the vicinity as we still had no engagement ring and wanted to have one made. I was strongly drawn to one particular jewellers and we decided we'd tie in a visit on the trip down. As it happens, we got chatting to the jeweller and discovered that he was the husband of the lady who had advertised the flat on gumtree. Furthermore, he too had studied experimental psychology in his youth, and his son was embarking on a very similar degree as my fiancées brother at the same university London that year, and was spending his placement in my childhood home of jersey. We looked at the flat together (which turned out to be lovely) and signed on the spot.