A Halloween pumpkin carving experiment went very wrong on live TV in Indiana.

Jason Lindsey -- known as the "Hooked on Science Guy" -- was trying to demonstrate how you can use a small explosion to carve a pumpkin.

Here's how it was supposed to go:

He pre-cut the eyes, nose and mouth of the pumpkin and filled it with a chemical formula. Once the gas built up inside the pumpkin, he ignited it with a lighter and the eyes, nose and mouth were supposed to pop right out.

Here's how it went:

He apparently allowed the pumpkin to fill up with too much gas, so when he lit it with the lighter, the gourd exploded.

No one was hurt, but there was a lot of laughter.