Few of us got a free dinner out of an unfortunate friend of ours who claimed, for years, superiority of one product over another and his ability to taste the difference easily.

So one night we decided to put his claims to test: he was summarily sent to basement with a few friends; while the remainder of us prepared the samples in the kitchen.

We (preparers) then left the room while he sampled and wrote down his choices - as double-blind as we can make it.

He was wrong even more than random guessing would've allowed; and the video of his confident, but entirely erroneous reports are still an amusing viewing amongst our group :)

Mind you, he still claims superiority of one product and his ability to tell. But time again, these claims don't bear testing...