“One is the loneliest number that you’ll ever do.”
So sang Three Dog Night in 1969 in their hit song “One.” Six years later, a best-selling item for a while was the “pet rock,” a stone taken home and treated like a pet. Yes, that’s right, people actually bought rocks and either kept them for themselves or gave them to others as gifts, companions they could talk to without all the fuss and mess of a dog or a cat.