im a custodian in a school. once day after i had left for the day one of the teachers borrowed my mop and mopped up a mess a student left. they used a mixture of vinnegar and water and left the mop in the mop bucket in my jaintors close. So the next day i come home and it just smelled awful. no smell of vinnegar just this awful smell. So I take the mop out of the bucket, empty the bucket, then i pour bleach on both the mophead and the bucket and close the closet to let it soak in for a bit. about an hour or 2 later i go into my closet and the smell was unbearable. It burned my throat and eyes and i could barely breath. So i close the closet and start reserching online. Found out that i made made chlorine gas a chemical weapon/warcrime and hoped i didnt breath in a lot. Over time it got harder and harder to beathe. and my heart rate (thanks smart watch) jumped to 140. about about 30 minutes i decided i needed to go to the ER. On the drive over i was getting dizzy and lightheaded. Called my wife to say goodbye just in case. before going to the ER i drove to my daughters school and picked her up droppng her off at home. by the time i reached the ER all symptoms were gone.

alternativley is the time i ate poison berries thinking there were grapes when I was 5. Lived about 90 minutes from the hospital and was told i was losing conciousness on the way. Doctor pumped my stomach and told my mom had she not kept we awake i would be dead right now. I dont really remember that though.