I watched the video twice, and I'm not sure he lost his finger. At the end (the slow mo part) I counted 4 fingertips and a thumb. Maybe I'm wrong though. He even shut the trunk of the car as he walked by.
And I don't think the bottle was glass... I think it was polycarbonate (one of those heavy-duty hiking type water bottles).

 

Yeah I think the bottle is polycarbonate also, and I thought he might not have lost that finger also but judging by the reaction of the people he was with and the fact that he was getting right in the car, presumably to go straight to the hospital, kind of made me think he didn't just slightly cut his hand. Either way... what a dumba$$

 

Stupidity hurts! We always made dry ice bombs in pop or water bottles cause you can see them expand so for beginners i'd reccomend the water bottles with the ridges.....Once the ridges bulk out it's time to run, And always keep a bb gun with you, if it doesn't blow in about 5 mins just shoot it. We did this thinking it would just shoot around forcing air out but it blows the **** out of the bottle!