To get a helicopters attention at night simply illuminate your wife and ask her to slowly expose her funbags. Then move light to offending car/badguy/etc and I bet they will follow........ They may land for a doughnut too!!
A US Army OH-58 was on finals to a night LZ on an exercise in the late '70s. A documentary crew who were filming the exercise finally got set up to film the helicopter which by this stage was on very late finals. The sudden illumination of the white spotlight on the aircraft turned the pilot into a startled rabbit and the aircraft into a training aid!!
Examine your Canadian laws for the "interferrence of an aircraft in flight" which was part of the ICAO legislature beefed up during the Istanbul (I think) conference on Hijaking. The aiming of a laser (in particular) or a searchlight at a night flying helicopter can be seen to constitute "interference with an aircraft in flight" and you might be able to get them this way. I note that the shining of lasers at people is considered an assault in many countries already, so it may not be such a long stretch. Then again, carry a sniper - much quicker, more effective, provides good practice, and reduces the possibility of the shiner breeding more idiots.
