At last one I have an answer for!
When I was a wee laddy, well 15 to be precise, I had a great chemistry teacher. He was madder than a box of frogs, and pupils that he liked could get away with almost anything in his class.

Well one day he was showing us the Alkali Metals and how they react in water. We had all seen it before and told him so, so he showed us Rubidium and Cesium! His next brilliant idea was to show us how they reacted in concentrated Nitric Acid!

Lithium - Reacts like Potassium does in water.
Sodium - Is a violent reaction.
Potassium - Was so violent it blew the large pyrex dish apart and showered the front bench in glass and Nitric acid.

I was kind of glad that I was sitting at the back!

More of this nutter later.
(Herr Doktor Lemminge Is bored, so cheer me up!, Fri 31 Oct 2008, 9:21, 2 replies)

lol..
I somehow gained access to a chumk of Potassium and a beaker of Nitric acid one lesson.. After the beaker had shattered, the chunk of fizzing fury got about half-way through the bench.. How they allowed me to obtain two such substances at the same time is frankly beyond me.
(AndyC4m Eject Eject [><], Fri 31 Oct 2008, 13:34, closed)

I call bullshit.

( idonthaveafunnynickname Drink-Aware? Sure. I'm aware I want another drink., Fri 31 Oct 2008, 19:33, closed)