Engineer Gets Aid

This took place at the hospital where the engineer is getting a parasitic spy of his ear while a soldier infected with a contagious disease sit beside him. The parasitic spy then manifest in the engineer's left ear which spooked the soldier briefly. This had the soldier to touch the engineer's forehead out of autism which spread the virus in the process. The engineer and the medic were shocked by this act and the engineer warn the soldier to stop touching to prevent further spread of the virus.

This is too late as the soldier died from his own virus while said virus remained in the engineer's body which strengthen the parasite so the engineer panic and want to get the virus and the parasite removed now. To do this, the medic start his traditional dance known as "The Oktober Aids" in an effort to get both the virus and the parasite off the engineer. That plan worked and the engineer thank him for the cure but at the cost of the medic's life force.

After the engineer is cured however, the parasitic spy transformed into a demoman and managed to come out of the engineer's left ear. This had the engineer to go after the demoman who escape from the hospital but the engineer stop knowing that the noble act the medic done was for the good for everyone's sake including the engineer himself. Because of this, the engineer then decide to take the medic's place and become the new doctor for the sake of the medic that saved him from the infection along with the parasite that lurks inside the engineer's left ear.