"The ambulance company that i used to work for had a 'haunted' ambulance : rig 12. A lot of EMT's has stories about it, but i never put much stock in paranormal stuff. That is, untill i had my own experienced with rig 12.
My partner and i were working in a rular community at 3 a.m., and it was and completely quite. We were both dozing;i was in the driver's seat and she was in the passenger seat. I woke up to a muffled voice and I thought my partner was talking.
I told her I was trying to sleep and closed my eyes. I distinctly heard a male voice say, "oh my god,I'm dying? " Followed by a few seconds of a heavy breathing.
My partner and I sat up straight and looked back into the patient compartment, where it sounded like the had come from.
There were a quite for a couple seconds;then we heard the click of an oxygen bottle regulator and a hisshiss, as it was leaking. I turned on the lights, and we ran out of the rig. I thought a transient might have climbed in while we were asleep, so we opened the rare doors.
No one was there. I checked the oxygen bottles;neither was opened. We didn't sleep much after that. "