Quote Originally Posted by Spartiate View Post
If you're using table salt, you definitely get hydrogen on the cathode, makes for good homemade fireworks .
When I was younger, we would fill plastic bottles 1/5 full with small balls of tin foil and then fill 1/2 of it with HCl, put the cap on the bottle, shake it real quick and then throw it far away. Basically the pressure of gasses build up inside and eventually explode the bottle, making an incredibly loud boom. We're not sure which gasses came out of it though. Probably hydrogen and chloride. Yummy! Collapsed lungs!

/derail