(I used to work at a sporting goods store, when a young guy of about 12-14 years of age came in.)

Customer: “Hi, can you tell me where I can find a jock, like for playing baseball?”

Me: “Oh, you mean a protective cup? Sure, they’re right over here.”

Customer: “Thanks. Oh, are there sizes?”

Me: “Yeah, they’re–”

Customer: *whispers* “I think I’m a small.”

Me: “They’re according to waistband.”

Customer: “Oh…”

Me: “I’ll be over there if you need anything else.”