We used to Freep the marches of local lefties by marching a few dozen feet in front of them with signs that said things like:
"WARNING! LEFTIST WHINING EVENT FOLLOWS!"
And ---
"PLEASE DO NOT FEED THE LEFTISTS!"
And - since these were allegedly "anti-war" events ---
"PACIFISTS ARE FREEDOM'S PARASITES"
Like the Protest Warriors. They marched with the lefties carrying signs like “Peace in Our Time” and later “Gigolos for Kerry.”