makes my blood boil.
use that phone as a weapon, throw it at the shooter, and maybe you distract him just enough for the other 20 people in that room to tackle him and beat his ass to death.
I know, everyone is an armchair QB, but shit... at the very least, there are 300 people holding glass cups/bottles when he walked in. If all 300 just did nothing but throw that bottle at the bad guy, he's on the floor.