I dont know how the pros do it, but when ya got a person on the floor with that blank dead stare like the dead cats along the road its 80% panic/ 20% dealing with the situation.
I know from the Army its easy to disconnect from everything but when its someone you love dearly if flipping blows.
But shes not in a nursing home and never will be.
The one time I had to shock her at home she hit 30/0 and was awake when I hit her at the lowest setting, she let out a groan like a horse giving birth saying please not again but with seconds was normal rhythm.