Yeah, that is the downside to making your keyboard your own. Anytime I use someone else's computer I always spend a few seconds wondering why I just turned caps lock on and wrote a bunch of gibberish.
The caps lock thing always happens with me haha, the funnest thing is other people are unable to understand hitting caps lock is more ergonomic than right ctrl.
Happily he would put it in "guest" qwerty mode when I had to type on it. It was hard enough typing in a cereal bowl.