Bought a baseball the other day. Fortunately, the ball came with the pictured warning. (Click if you need a close-up.)
I am always happy to be forewarned. But, I confess to a high level of puzzlement here. Can anyone tell me to what other use a baseball might possibly be put?!
Somber and Dull 
It can be used with malicious intent. That's why we need a nanny state!ge
*L*