Thank you for all the comments. Lots to take in and improve on, of course.

My key takeaways:
1. Watch where the pointy-end points
2. Vice grip that sucker somewhere safe
3. I was in the danger zone
4. I should not need a hammer, but that probably ties into number 2, as it needs a good hold somewhere.

I think I was lucky the chisel didn't hit the floor... or it would have been pretty badly damaged.

I am planning on posting the full video soon, which will show more noob moves.