The dentist pulls it out when it hurts.
21st floor person goes: AHHHHHHHHHH 1st floor goes: AHHHHHHHHHH
After I dump my load in a washing machine it doesn't follow me around.
In all 3 cases, someone forgot to pull it out.
Leaving a plunger in the toilet.
Tooth hurty
A little plaque.
Because they are pretty and hurt you.
Batman thinking about his dead parents.