Late last night, truck idling on street in front of my house. Bothered me, grabbed M3XS-UT and made way into yard behind my very large trees, pointed M3XS-UT at yield sign just in front of said truck, out of sight of truck occupants... Lit it up on high, and that yield sign lit up like the sun, maybe brighter.
Truck left immediately.
Usually a camera flash in background is enough to spook the naughty, though this worked well.