If you live in the US one of the hardest things about being a quadriplegic is that you can no longer exercise your right to bear arms. Unless you arrange to go hunting with a mouth controlled shotgun.
For a quadriplegic, firing a shotgun requires help from a companion. In Mr Cap’s case, a friend sets up the contraption, safety on, on Mr Cap’s wheelchair and Mr Cap aims the shotgun by moving the toggle switch with his mouth. Once his partner releases the safety, Mr Cap fires by sipping on the breathing tube.
I don’t want to make light of Mr Cap’s situation – but how cool would it be to have a shotgun that you could control with your breathing.