Electricity is dangerous. If lightning wasn’t proof enough of that, here you can watch as someone for reasons unknown (otherwise known as because I can), decided to connect 16 high capacity capacitors together. For serious, look at the size of these things:
According to math, all of these wired up in parallel like this gives 2180J of potential, which if I remember, is quite alot. Here you can see what happens when all of that energy is released at once into a pencil. Hint, it’s not good.
After the click you can watch an extra awesome video. Trust me.
Here they are going to launch an empty coke can. According to their math, it was launched upwards at about 50 miles per hour: