Have you ever sustained a severe head injury?

Blunt force trauma on three occasions. Fell out of a van going 65 mph at 7 years. Head first into a fire place at 9. Pipe Nun chucks at 24. The last was the most serious. Although there was some organic brain damage, my Norwegian / Neanderthal skull saved my life all three times.

No, I’ve been hit between the eyes with a softball and had a seizure...also seizures from my older sister kicking me in the head...

Car accident

when i was a kid i am sure i had a concussion at least once but probably twice. it wasn’t severe but nowadays it would be a trip to the hospital. back then they told me to put my head down and close my eyes (at school)

Got hit with a baseball sized rock...
Split my head open pretty good.

No, just a few concussions playing football.

Anurism

More than once.

Yes

I once ran around like a headless chicken

Yup. A head full of glass too.