I was expecting a different kind of fun with ACID.
When I was in the 8th grade we noticed one day after school that all the teachers were in a meeting so there was no one around to stop us.
We went into the science lab and mixed up a concoction using 3 different concentrated acids. We knew it was nasty why we saw a purple mist rising from it.
To finish it off, we dropped a sizable chunk of sodium metal into the mixture. It immediately started burning with a violent, brilliant blue flame. After a few seconds the white hot chunk of sodium popped out of the beaker, landed on the table, and melted a hole about an inch in diameter completely through the table top.
At that point, we called a halt to the experiment, destroyed the evidence as best we could, and cleared out.
Now that was fun with ACID!