"Perhaps not a big one. But mixed with the right chemicals, it lets off a highly toxic gas that can kill people and animals nearby. Hydrogen peroxide, when combined with various salts and heated can form an explosion that produces ether. Which as you know, renders people unconscious."

As he speaks, he sets a contain of household bleach on the counter, and then goes back to the cupboard which held baking soda and other common cooking ingredients.

"Will you pass me a bowl, please? Not a metal one. I believe they are in that cupboard."