to black about grenades not killing IRL

We talked today about how exploding grenades sometimes fail to kill people even in real life. Here's an example video. It was filmed during the assault on a Russian police station in Nalchik by Chechen fighters. The whole video has some rare and interesting battle footage, so watch all of it, but the part where the nade explodes happens during 1:20 to 1:30. It explodes right next to three guys, all of whom survive the blast (cheaters!): https://www.youtube.com/watch?v=kX7Yv2XTBSA