Protestors in Hong Kong have figured out how to extinguish tear gas canisters that police throw at them. They cover it with a traffic cone then pour water into the hole at the top of the cone, which stops the canister from emitting tear gas.
— Alex Hofford (@alexhofford) July 28, 2019
Image: Hong Kong 12th June 2019: Anti Extradition Bill Protest. Riot police bunch up next to a cloud of tear gas during clashes with protesters outside the Central Government Office in Hong Kong. By Dave Coulson Photography/Shutterstock