The recent further adventures of Troy Hurtubise: whacked in the head

In these videos, both apparently from the same event in late 2013, Ig Nobel Prize winner Troy Hurtubise demonstrates his technology that protects him, to some degree, even when a large man whacks Troy in the head with a baseball bat:

BONUS (possibly, but not necessarily, unrelated): “Brazil unveils ‘Robocop’ suit to protect super-elite police unit during World Cup“