"if the battery in a mechanical mod over-discharges and the device doesn't contain enough air holes to allow the battery to vent, there is a risk of explosion." https://oakley-sunglassesformen.us/Grzegorek-daughter-of-Grennon-from-Durango?Valesson=116
but what if it had happened in one of the maine schools where the rate is 10 percent or more?.