I've heard a war story about someone being able to consistently enter their password when standing up but never while sitting down. In the end, it turned out to be a QWERTY vs. QWERTZ thing: standing up, they'd look at the keycaps, but sitting down they'd touch type.

(if Rocky Balboa had been rated on WPM instead of KOs: https://www.youtube.com/watch?v=ugcwp1g9Bao )