I can see myself possibly falling over for this one. Literally not figuratively.
I once took my Rift to work to demo it. Had colleagues on the Bullet Train demo and one got a little too involved, he's an RAF reservist, could see his breathing getting heavier and he was making some pretty rapid movements turning this way and that. Eventually, he backed up too far and this put an almighty tug on the hdmi cable and it broke some pins :(
Luckily I got it fixed though. :)
I'm FN-2187 on Oculus if anyone wants to friend me.