On the way home from Target….
TB: Mom, have you ever seen obsidian?
Me: Probably.
TB: I know how to make obsidian.
Me: Really?
TB: Sure. You just mix water with lava.
TG: No. That’s not how you make obsidian. You can’t make obsidian. It is a metamorphic rock made from lava under pressure.
*Momentary silence*
Me: Word.
