DS is 5 and gets easily frustrated and then reacts badly...
He couldn't rip a page out of his coloring book without ripping the whole thing, so it's "I hate this stupid coloring book".
His brand-new powerwheels wasn't working right so "I hate this stupid atv!"
If he gets mad at me or DH or his friends, "You're not my friend anymore!".

How do you teach your LO's to correctly handle these situations?