I can't make heads or tails out of what he says (and this is both BEFORE I take my morphine for my chronic leg pain as well as AFTER I have it in my system), so I can attest that being ON drugs won't help.  The device he speaks of is called a PASS alarm (named after the company that developed it).  Before I hurt my knee, I was a very active volunteer.
Anyhow, hopefully he is busy driving his truck and we won't have to hear from him.
BTW, did you read Danny's post about the carrier pigeons?  He can be funny at times.

Ed