I need help with a joke/pun for a classroom board for a parent's day tomorrow. [x-post from r/punny]

I was thinking of putting a candy jar or something above where the smarties are and throwing in a pun or a joke. Hoping reddit can help me with filling in the empty space.

[Classroom Board](http://i.imgur.com/YIfXCuV.jpg)

You might also enjoy

Many of the jokes are contributions from our users. If you find anything offensive and against our policy please report it here with a link to the page. We will do everything to make this an enjoyable platform for everyone.