this was the episode where Radar and Fr. M. got a patient from battalion aid and were driving him back to the 4077th when they had to do an emergency traciotemy on him.

I remember back when this first aired; as Hawkeye was describing it over the radio; I was watching with my brother and two sisters. At one point I looked around the room and we all had our hand on our throat and an expression like "YECH!" Anyone else have that reaction?

Yes and no. Yes, the episode in question is in fact "MULCAHEYS WAR". No, I did not have that reaction.