It was chemistry day at our homeschool yesterday with this awesome kit, and Frank making dinner day today. No particular relationship except for cedar vinegar. It was needed in both, and used in only one.

Why? 10-year-old Stuart explained:

It may be contaminated with copper sulfate. That's poisonous, you know.

I rolled my eyes and went digging for non-cedar vinegar. The wife overheard the discussion and comforted me:

At least there's no brain in the fridge.

This time.

Yup, just another day at the household.