So I'm at work a few days ago. I say "Hi" to a guy that works in another department as we pass each other in the hall. He is a young guy, easy to deal with and generally in a good mood. His youth is a bit too obvious at times, but not really in a bad way. Anyhow, he returns my greeting but sounds to be talking a bit funny, vaguely like someone holding the end of their tongue while trying to talk. I don't give it much thought beyond figuring he has gum in his mouth or something, and keep walking. Ten minutes later, back at my office, my boss comes into my room laughing. He asks me:
"Did you talk to Joe* today?" "Just said Hi, why?" "Did he sound funny?" "Yeah, I guess so. What's going on?"
My boss proceeds to tell me how Joe apparently was having trouble with his truck. The battery was getting weak, so he figured he needed a new one. At break time he ran to the parts store and bought a battery, came back to work and installed it in the parking lot. So far, so good. Joe then put the old one into the bed of his truck so that he could return it to the parts store to get the core charge refunded. Arriving back at the parts place, Joe notes that the battery has fallen over and there is a puddle of liquid in his truck bed. Apparently unsure what said liquid is, he dips his finger in it and tastes it(!). He reports that it tasted very strong and bad, and that it instantly began to burn very badly.
No kidding.
So now he is talking funny due to the sulfuric acid burn on the end of his tongue.
* Not his real name. Names changed to protect the stupid, but I'm not sure why I should bother.