Password Caps Lock instead of Shift Key

I didnt have a good day at work today, so I am going to go "have you seen?"...

Do you guys watch users typing in their password where they use the caps lock pseudo like a shift key? I sat through three staff in a row using caps-locking / un-caps-locking whilst entering passwords. They all locked themselves out.

I find it the strangest thing and seems very common at the new place Im working at - almost like they were trained that way - the shift key never comes into play...