Ever tried to re-gift a present you didn't need? Two brothers-in-law kept giving each other the same pair of pants for decades - and in increasingly complicated wrappings. Plus: ever hear about the time Alex Trebek walked onto the Jeopardy! set without pants?
Brothers Traded Moleskin Pants as an Annual Christmas Gift (Snopes)
Jeopardy! Flashback: Alex Trebek Without Pants (Jeopardy!)