Lol, what if we ALL, make a concerted effort to, whenever we see a cart to -
(a) Stumble into it, completely wrecking it, knocking everything to the floor, then get up, brush ourselves off, and say " I AM GOING TO SUE YOUR ASSES, HOW DARE YOU PUT THIS IN MY WAY".
or
(b) Walk by the cart, "tripping" on the carts corner, falling flat on your face, and screaming "I AM GOING TO SUE YOU, THIS CONTRAPTION HERE, HAS TRIPPED ME".
or
(c) Whenever the cart has a magazine, with a "SCARY" armageddon, destruction type picture on its cover, you run over to the Witnesses, manning the carts and scream, " I AM GOING TO SUE YOU, YOUR PICTURE OVER HERE, HAS GIVEN MY CHILD NIGHTMARES, AND HE/SHE CAN NO LONGER SLEEP AT NIGHT ", then point to any child walking by in the area, like thats the poor child in question, or bringing your own child works better.
*Please Note*- There can be all different variations of the above. Such as falling into the carts with hot coffee, to "spill" all over the literature. You can wear pre ripped clothing and walki into the cart, claiming the cart "ripped " your clothing, again, sueing is the only option. Fake blood, and severed body parts, can help for desired "effect", too. If the cart is in a less crowded area, perhaps driving your car, directly into the cart, would be your best option. Again, falling out of the car and screaming, that you will sue, is the only option. Using a car you planned on "junking" anyway, IS preferable, please do not use the wifes, family car, for this, (they dont like that).