I don't know if that counts, but on a fresh default Debian Stable system, my cat walked across the keyboard and the DE crashed.
I could still switch to another TTY and reboot via command line.
After the reboot, I was greeted by a blinking cursor and nothing else. Had to reinstall.
It checks status when you switch it on before your ride, and warns you with LEDs if it can't activate.
It won't ever switch off during your ride unless it runs out of battery.
I don't know if that counts, but on a fresh default Debian Stable system, my cat walked across the keyboard and the DE crashed.
I could still switch to another TTY and reboot via command line.
After the reboot, I was greeted by a blinking cursor and nothing else. Had to reinstall.