Conversation at the house yesterday with my seven year old son:

"Mom, will you tie my shoe?"

"No, honey. You know how to tie shoes. You need to do it yourself so you can get better at it."

"Pleeeease!"

"What would you do if you were at school and your shoe came untied?"

"At school, we have a shoe tyer."

Long pause.

"What's a shoe tyer?"

"You know, a kid that's really good at tying shoes."