LOL... Not humiliating... but could've been if I'd handled it wrong... but the first time I bought condoms, back when you had to ask the pharmacist because they were kept behind the counter, he asked "What size?"

I'm sure I gulped but I've never been one to shy away from saying I don't know something... and said I have no idea... and he then took pity on me and said they came three, six, or twelve to a box. LOL