Set 1
The sign says, "Watch out for our children, they could be yours . . . " Hmmm . . . I'm not sure how their children could be mine. Source: Thrifter
You will need to work hard to decipher this sign. Source: BenYankee
I guess you have a 50-50 chance of guessing the right direction. Source: pnwriders
A grown man can obviously safely discard trash. But a child, if a child throws away trash, the trash can will bite off his hands and head. Perhaps, a better trash can might be in order. Source: Thrifter