The headrest of most car seats comes off and the metal points on the end can be used to break out the car windows if necessary.
Not in the way you think though. Pounding on the glass isn’t a great way to break it. The best way is to insert the metal part into the seal between the window and door and lever it outward to break the window.
"People having seizures cannot swallow their tongue. Do not put anything in their mouth."
It's not that people actually swallow their tongue, it's that their tongue will rest in the back of their throats restricting their ability to breathe. People have heard this and misunderstood what was actually happening and spread misinformation for decades. So then things like this come out without actually addressing the truth or the root of the phrase. Your tongue isn't going to rip out of your mouth and go down your throat. It can rest in the back of your throat and choke you to death. That's what they are saying when they say "swallow your tongue."