Here’s what happens when an airplane cabin loses pressure, according to a passenger who survived it: ‘Brain-searing pain’

When the cabin pressure suddenly drops, generally due to damage to the seal that keeps the cabin airtight, oxygen masks drop.
LAist

LAPD is barred from using some crowd control weapons, but others still carry unique dangers

Another type of crowd control weapon found to be especially dangerous is the use of beanbag rounds, usually fired from a 12-gauge shotgun. These rounds fire small lead pellets sealed in a fabric bag.