So your flying along fat, dumb, and happy in your 1962 Cessna 172, minding your own business, and happen to look out the rear window and see this.  Then look to the side and see that dude’s Bro doing this.

Ya, you might be in trouble.  This are pics of us practicing to intercept the dreaded “Canadian Cessna Threat”.  Turns out it’s pretty sporty when the fastest speed those things can fly is still about 30 kts less than the slowest we can fly.  You also start to wonder how to shoot one down, as these is pretty much nothing in the fuselage to damage with bullets and the motor is not really a heat monster for my friend, the AIM 9.  I figure I will just fly over and thump one, if required; the jet wash from the "tennis court"  (aka F15 Eagle) should do the trick.