Oh, mythbusters.
This is the second episode I've seen and I've gathered that really all they do is blow up their poor dummy, Buster, and then laugh when he's got smoke coming out of his head somewhere in the distance.
This poor dummy.  They wheel him around in a wheelchair and then prop him up in positions where he gets dropped, crushed, blown up, or chopped.  It's kind of hysterical, but the also kinda sad because Buster loses a limb in every scenario.
They just started the episode as 'Buster's excited, he's going scuba diving!'

Poor Buster.  It's funny that they treat him as a person and then talk to him, and then he comes out of an experiment all charred and they're like hey buddy, how're ya feelin?

Not so good, I'd assume.