If you were saaaaaay 6 years old
and you were trying to put together the game Mousetrap
and you got frustrated and asked your friend's big sister to help you
and she refused
you'd probably feel a little frustrated. Or a lot frustrated.
Chucking a chair at your friend's older sister's head is a bad idea.
It will immediately bring an end to your play date.
Why do you act surprised?
Then, if later on that same day
you decide that you "need" to pinch your other friend's younger sister
this will also bring an immediate end to your play date.
And will lose you the privilege of play dates for the rest of the week.
You're somehow still surprised?
Who's house have you been growing up in that these consequences are a surprise to you?
Where's my damned mojito?