they can already be used to kill, but in the near future they might also be used to save you when you take a relaxing hike and end up getting completely lost. worry enough to check the date on the bottom of the can. let's start off with the buses. walking, jogging and riding a bike can also offer stress relief and reduce the risk for health-related problems. dust with cocoa powder and let the finished product sit for 30 minutes at room temperature before you serve and gobble everything up! 