I'm a paramedic, so...
First I would be called into work to help deal with the sudden increase in call volumes, regarding an outbreak of an unknown virulent disease.
Second we would be called out immediately on logging in to deal with a caller who had collapsed after being bitten by a neighbour.
Third, we attend the call, noting the signs of chaos and panic as we blue light to the scene.
Fourth, we load the patient up who by now is unresponsive and head off to A&E. As I'm on driver shift, my partner attends in the back.
Fifth, I hear screams in the back and the hatch window is obscured with blood and tissue. I stop & open the back door to check on my partner. Stunned and frozen into immobility as my brain attempts to process the scene, I react too slowly as our 'patient' finishes dining on my partner's flesh and grabs for me. My last thoughts as I am eaten alive ... 'If only I'd joined the navy...'
It's a fact - paramedics would be the #1 victims on day 1 of the zombie apocalypse

. I'm doomed