It is strong enough however to spread paint on all four walls of a 20 by 20 foot room.
Baseballs make marks on ceilings.
You should not throw baseballs up when the ceiling fan is on. Brake fluid mixed with Clorox makes smoke, and lots of it. A six year old can start a fire with a flint rock even though a 36 year old man says they can only do it in the movies. A magnifying glass can start a fire even on an overcast day. If you use a waterbed as home plate while wearing baseball shoes it does not leak - it explodes.