Back in the hoary mists of the past, about 1990, I wandered into my workplace's employee-only break room and saw this sitting on top of a locker. I thought, "Oh, that's cute. Bunnies."

Followed closely by me thinking, "WTF?"

I took the mug down and saw that the design was, in fact, a bunny orgy. Instantly, I decided that I must have it, but it obviously belonged to someone.

So I asked around, and nobody claimed it. I put it back and waited a week. It was still there, so I took it home to clean it (it had a skim of dead coffee and dust in the bottom). A month later, and still no claimants, so it's mine now.

I've treated it like one of the Crown Jewels, which is why it's in such good condition.