Watching this video reminds me of the time when the game Counterstrike was hot. If you throw your grenade wrongly, it might cost you your dear life.
A Chinese soldier almost died in a grenade throwing practice. The army is guided by his mentor and as he threw his grenade, the grenade bounced against a wall and fell back into the bunker. Both the soldier and his mentor ducked for safety but his mentor managed to pull him into the pit, saving his life or from serious injury.
Watch the video here.