(These are all thanks to Isaac - there were no prompts here, he was just announcing these rules as he "colored" the pictures.)
No flying kites when the wind is blowing too hard.
No playing ball when a pumpkin is the ball.
No jumping into a pile of sand goo.
No roller skating when flower chompers are after you.
No fountains when chomper monsters are going to drink it.
No riding bikes when alien ships are chasing you.
No sitting when the blocks are evil.
No riding skateboards when chomper monsters are chasing you.
No drinking tea when killer monsters are in it.