Liquid nitrogen.
Edit: here's the image, if you want.
>/u/13thmurder: >I work with liquid nitrogen all day. Being splashed with it like that wouldn't actually hurt at all. You'd need to be hit by a constant stream of it to cause any damage, or pour it in your shoes or something. Prolonged contact does damage. Momentary contact does nothing.
>>/u/shagmyballs:
>>What kind of job requires this?
>>>/u/Bubonic_Ferret:
>>>A cool one.
Source: http://www.reddit.com/r/WTF/comments/1ypcvn/acid_in_the_face/cfmoecc
I dad joked a couple of my co-workers today.
The factory opposite the one we work in has just had a liquid nitrogen tank installed.
So I asked if anyone knew what they made that needed it.
Worker 1: They make security things, you know for shops.
Worker 2: That's not what I've heard, I heard they make audio equipment.
Me: Well... those must be some pretty cool speakers.
