There's a video online being referred to as the "Dancing Squid", and if you have a weak stomach, don't watch it. "Dancing Squid" is a Japanese entrée that involves pouring soy sauce over a freshly killed squid . . . which makes the squid's tentacles FLAIL AROUND like it's still alive. It happens because the salt activates the cells in the muscles . . . so even though it's dead, it looks like the squid is still alive when you eat it.
There's a debate over whether the squid in the video is ACTUALLY dead, because it looks like it still has a brain. But the salt thing DOES work. It actually works on frog legs too.