Defense Tech: TOUGHEST. DRONE. EVER.: "The ROBART III is the Space and Naval Warfare Systems Center's prototype for a mechanical rent-a-cop replacement -- designed to detect intruders, and pop 'em with a 'pneumatically powered six-barrel Gatling-style weapon that fires simulated tranquilizer darts or rubber bullets.'"

It's ok, I was thinking it too.

(Via a DefenseTech.)