I'm a volunteer Fire Fighter here in my town, I am a certified first responder. You see a lot of sick shit. You will most likely get drug tested if you start working for a hospital. Mostly due to the fact that you have a "orange box" full of narcotics.
The most fucked up thing I've seen while on a call has got to be when a lady thought she had a mis carriage. So I live out in the wood's in Alabama, My radio goes off telling me to go to the station. I get there and off we go, my captain (The paramedic, his wife the EMT, and me the First Responder. So I was told it some lady called 911 screaming that she had a mis-carriage. So I'm thinking to my self, "maybe there is just a lot of blood." We get there and we all slap on our gloves, and grab our tools. The lady was just sitting on the couch smoking a cigarette. We ask her what's the problem, and she tells us that it is in the "toolett"(means toilet but in a super southern accent).She mentions that she's been on the pill for 6 months.. I'm like what the fuck? So the EMT and I walk to the back to the bathroom, we begin to notice the worst most awful smell in our life. We both look down in the toilet and I almost threw up. Holy fuck, I haul ass to the truck and grab the "Red Bag" (Bio hazard bag). After we took the lady to the hospital they took the bag from us. Later that night we got a call from the doctor saying that it was a tampon, (I swear the thing had a back bone.)
If you choose to go into anything. Try checking out your local Fire Department. You go through a lot of tough physical training, almost like boot camp, but it all works out when people tell you that you saved their lives.