That’s how any apocalypse comes. Humans. Even if the end isn’t inevitable, we’ll find a way to make it so.
Imagine how funny it would if the apocalypse was started over toilet paper because everyone was scared of the flu.
Why not invest in a washcloth and a bar of soap? Then you can comfortably take a shit and clean up the mess while the rest of the world dies from excrement build-up in the ass crack. It's just a thought.