At our cafe, we have these little peg jump games on a bunch of tables. Mostly to entertain kids but adults like to play with them too.
Sadly several are missing some pegs, mostly from idiots breaking them or dropping them and certain workers not noticing they just vacuumed up a peg - though that worker was recently fired to general huzzahs, for reasons I won't get into here right now.
Anyways, I was walking past a table with a boy, about 7 or 8, and his dad. I noticed the boy was underneath the table reaching for something, and when he emerged, I realized he had dropped the peg, then gotten out of his seat and picked it up, and put it back in the game.
I will mention they weren't even playing it at the time - the food had arrived already. So he was just being responsible.
I thanked them both for what I saw. They enjoyed their food, and left a nice tip. I really hope I see them again!
Now, in case that was too sweet, a quick story from last summer to dilute it.
A customer told me the regular coffee is out. There is a new one brewing, which takes 3 minutes, and I apologized for the wait and said it would be replaced very soon. I turn to finish writing out an order and hear a crash.
Bastard moved the brewing coffee pot (which are like 1.5 feet tall) and stuck his mug under the flow, and knocked the pot to the ground. Which was already half-full with coffee.
If looks could kill, he would have been vaporized.