Fortunately, asthma attacks don't regularly get anywhere near that severe, and second, I don't have asthma to begin with.
The next user is on the Enterprise, when it crashes into the Enterprise from an antimatter universe.
However, the person only weighs one ounce, despite being so fat.
The next user is standing at ground zero of the asteroid impact that killed the dinosaurs, while it's happening.
The room's air temperature somehow falls to 100 degrees below zero, preventing any decay from occuring.
The next user is hit by a radioactive train.
I don't. (get saved, not the attack happening)
The next user has their head stuck in a meat grinder being turned. Ouch.