"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."..

another new drug in the migraine pipeline is lasmiditan. it works the same way as triptans. but unlike the triptans, it doesn't constrict.. https://drbryanpwalsh.com/Gallaugher-neighbour-of-Eckrote-from-Benoni?Zorrillas=135 .