"High tech" version of Henry Ford's old test. He wouldn't hire anyone who put salt on his food before tasting it.
Seriously though, Ford's test sounds silly. I'm sure he had some kind of justification for it, but I doubt it really did a good job of screening out who would and wouldn't be a good employee.
Do you want to hire someone that does things 'because that's what they always do', or because they collected data and acted appropriately?
I'm not saying salt is a good indicator - there are a million other ways you could test it - but I think that's the gist of it.