You literally just take the cap off, whack it to your (or their) thigh, and count to 5. In an emergency situation it's occasionally other parties, with no expe

You literally just take the cap off, whack it to your (or their) thigh, and count to 5. In an emergency situation it's occasionally other parties, with no experience or knowledge of these devices, who administer. The design decision was likely made for observed reasons.