I hope you air flow is adequate and in the right direction. You still might want to dig into your pocket and get that sheet f steel, hang it at an angle and have a bullet trap under it. Then stick your trash can catcher in front of it. Stray bullet problem solved and you get your lead back but first the air. You don't want all that fun and have to give it up because your nervous system goes whacky doodle from lead dust in your system.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.