Has anyone had any experience using fix-a-flat in a can? I want something to have with me just in case a flat should happen out on the trail. I purchased the 16oz. regular size for car tires because it had the hose on it. It says not for use on motorcycle tires but I was wondering if you could just regulate the amount going into the tire with the push button. I Just want it for emergency use to get home. Most concerned that once you start filling the tire, that you cannot stop it before the can is emptied. Thanks!