to use a numb hand to shelving
a pill. such that it feels like a stranger
is doing you that favour.
Whilst novices might sit on ones hand for a prolonged period, experienced operators would opt for a tourniquet.
when i go the good samaritan on myself, i make sure that i'm looking in the mirror, so i can give myself a wink when i'm done. I find It is also a superb opportunity to give oneself a dirty sanchez