The Lada Effect
It's when you see a Lada driving past, you know it will personally cause an accident or at the very least influence other cars to get into one. This is commonly known in Russia as the Lada Effect. If you see a Lada, get off the road NOW!!! You've been warned!

It can also be used for junk products making other decent products junk just by being in its presence.
Aw no! There goes a Lada...you know what that mean don't you? Nuts too late. The Lada Effect strikes again!