me and a friend did that with my 5mw HeNe that was hidden in a tool box, we hid on his parents deck just behind there bbq grill and shined at joggers but our fun was cut short when the cops showed up, we never did get caught but we had one guy running around his house thinking some one was in his bushes with the laser, we where about 100 yards away and interuped the beam when this guy took a dive into the bushes, we had that going for almost an hour, this was in i think 1990, the stupid stuff we did as kids lol