"They just went straight through the intersection — even with my stop sign up, even with children crossing," she said. Cameron said some crossing guards have threatened to quit.

Calvert designed the "children crossing" road sign using herself and her younger brother as the inspiration. Her new design is thought to draw from the same inspiration and reads "After Margaret ...

WATCH: Crossing guards are the unsung heroes of many communities, but in Peterborough, Ont. one crossing guard is being told he’s breaking the rules by giving kids a high-five as he guides them ...