"I put a plastic cover over the ground, installed a ladder and put on painting overalls. The mural is on a trail connecting two neighbourhoods so there were frequent passerby, people walking dogs, etc.. I basically ignored them and kept working calmly. Only one dude tried to call my bluff. He shouted something like ‘hey stop, what are you doing?’, but i didn’t look up and only turned around a few seconds later to pick up a different color, so he assumed i was legit."