I only watched these kids once, because there regular sitter was not available, but the following happened to me, and I learned a lot from it.
There were 2 boys, pretty close in age, once was more of a wallflower, the other a little more boisterous, but they were both good kids.
The morning I watched these 2, LMB, took a bowl of leftover popcorn, poured salt on it, some pepper, some other things, and I just watched him, I never said anything.
He finally says, aren't you going to yell at me?
I replied back, no, why would I do that?
He then proceeds to clean up the mess he just made without even being asked.
Of all the kids I ever watched, I had one little nightmare child. He lived across the street from me, and until I watched him I had no idea how little discipline he had. The first time I watched him I limited him on sweets and treats, when he asked, made sure he ate lunch, etc. The next, and last time I watched him, his mother told me he could eat whatever snack he wanted. Who am I to go against what mom said, especially when the kid is right there. He ate an entire box of ice cream sandwiches, and because of what his mother told me, in front of him, I could not say no.