[MaxikCZ]

3w laser sounds terrifying in itself. Firing it autonomously even more so. Have you made some calculation of how long would direct eye-hit need to last to cause blindness, and how long for a bounced light from bright diffuse object? My guess would be way less than 100ms for direct hit, but I am not sure even diffused reflection would be safe at such power levels.

[aenis]

Nope, I assumed any exposure to the light would cause blindness. The way it operated was it would stop if anyone was at the terrace (as indicated by the door lock being in a closed position, something one could do only from the inside). But yeah, it was a product of frustration, not rational thinking. I'd certainly consider it stupid if someone else described it to me now.