I forgot to mention (in post below) that in my first grade class, one little girl drew a gorgeous parrot head but couldn't get the wings to look the way she wanted. After lots of erasing and redrawing, she put her pencil down and sank he chin into her hands.
"What's wong, Mia?" I asked, kneeling down next to her at the table. "You look unhappy."
"I don't like my picture." she said, glumly.
"You don't? Just look at that beautiful parrot's head. Did you know that heads can be the hardest part of drawing any animal or person? And look! You've done it."
She didn't respond.
"What part of your bird makes you happy?" I asked.
"Good. What part makes you sad?"
A little boy exclaimed after coloring his parrot in brilliant tropical colors, "This is my favorite class in co-op!"
It doesn't get much better than that.
Another boy was told three times not to play with the Spiderman action figure he brought.
Finally the teacher's helper took it away.
The little boy scowled, "You've ruined my life!" and spent the next minute pouting, face down on crossed elbows at the table.
It doesn't get much worse than that.
I gave it back to him at home.