School of Life Hacks
    Sign inTake a seat

    Curriculum / Keep It Running / Module 4

    Carbon monoxide and the non-negotiables

    The three symptoms that mean you stop, leave and call somebody today, not this weekend.

    This lesson is inside a seat

    The first lesson of every course is open. This one is not.

    The three symptoms that mean you stop, leave and call somebody today, not this weekend. It runs to roughly 0 words, and it is one of 28 in this course.

    Hold a seat — $149Read the free lesson firstI already have a seat
    School of Life Hacks

    The things nobody teaches you.

    Nothing here is legal, tax, financial or engineering advice. Every course tells you plainly where to stop and call a professional, and names which one.

    © 2026 Fusion Data Company. Refundable in full for 14 days, for any reason, whether or not you have read the course. Email the address in the footer and it is done the same day.

    Card checkout is not switched on yet. Prices on this site are the prices seats will be sold at, and reserving a seat holds one at today's price and costs nothing — no card, no account, one email address.