Thomas: I think we’re ranning out of toothpaste.
Mom: “Running.” We’ll have to get some more at the store.
Thomas: (spitting out toothpaste froth) How ’bout if we should use my spit for toothpaste?
Mom: No, no, honey. There’s still some left in the tube, see?
Here’s a quick sketch, from a pose chosen especially for the occasion by the model.