The most absurd challenge premises

Hello everyone!

Sometimes I remember the FroYo Have-Not challenge from S15 and wonder to myself "Who thought it was an idea that would make sense?" The closeups on the mouths, the constant slurping sounds, various stains on the bodies. Oh, and the "who gains more weight wins" situation would not be as pleasing in the current times.

Can you bring up any other challenges from US or CAn which were as dumb in concept as this one?

Thanks in advance for your suggestions!