I’ve made the mistake of violating my three- or four-bottle limit a few times (cf. “Most bottles of a single vintage of a wine”). In recent years, it’s been with daily drinkers. Not that I don’t like the 2018 Felsina Berardenga, but I don’t need a case to satisfy my curiosity about its development.
My worst over-purchase was a case of 1996 Scavino Bric del Fiasc in Alba in 2000, before I saw the light and stopped buying modernist Barolo. (Or at least, I thought I’d bought a case. The shop shipped 8x 1996s and 4x 1994s to me in London. There was no way of exchanging them.)
Recently I opened a bottle, hoping that the vintage would win out over the winemaking, but the vintage suffered a lopsided defeat at the hands of Enrico Scavino (a lovely but misguided man in those days). Characterless, muddy and monolithic. Utterly spoofified.
PM me if you want my remaining half case.