Well, I'm walking down the road and I see this crazy idiot go to the world's nuclear storage and press the 'Detonate in Thirty Minutes' button. I then see the President of Earth lying dead on the ground. After calling the police, I follow this madman to a small homemade rocket, and, figuring I need to GET OUT OF HERE, I hide in one of the food crates this person takes onboard. After going into space, I look out the window of the storage bay and see my childhood home being blown to pieces, and also a person freezing to death in space.

The next user is that person.

All I have to do is get to my spacecraft before my air supply runs out, which I accomplish using a small nuclear rocket. This is due to the fact that space is not actually cold, as it is mostly a vacuum, which has no temperature. In addition, I am being heated a bit by solar radiation.

The next user is trapped in space, right next to the Sun with no method of escape or rescue.

As this place takes a long time after modern time, the sun is a white dwarf radiating little to no heat. I happen to be in a semi-functional space station with no working engines. There I live until rescue arrives.

______________________________

The next person is being forced to eat dirt :P

I am a life form that lives on dirt.

The next user is burned at the stake.

A sudden thunderstorm dumps enough rain to put out the fire before it could reach me.

The next user accidentally overexposed themselves to high levels of UV radiation, and now has a lethal case of skin cancer as a result.

I am a tardigrade.

The next user is a fish in the middle of the desert with no water in sight. There has been no rain there for three years and there will not be any rain for another thirty years to come. They have no water at all and are about to dehydrate.

--EDIT--

Oh, and also:

@FeynmanLogomaker

Kikkin said 'completely normal human', so your answer may not be legit. I'm not here to decide, it's Kikkin's decision.

Much of the desert is just a mirage, revealing an oasis. I jump to the water with my fins and tail.

The next user, as opposed to @Michael238, is exposed to gamma, infared and ultraviolet rays simultaneously instead for a week.

I was wearing vibranium armor :D then I throw it off when it's about to explode revealing another suit of vibranim armor and so on...

The next user was hit by the armor explosion