"mom, do you think if i put this 'tip jar' in the hall, people would just put money in it?"
"no. no one is going to put money in a jar sitting on the ground in our hall."
"but they might. you know, like a tip jar. people always put money in tip jars."
"you only tip someone when they've done a job that helps you and you thought they did a good job."
"i'm just going to try it anyway."