Yer the BG, hear a shot, feel sensation in hand not unlike ya been hit with a lead pipe, ya PROBABLY drop the gun regardless, and in a hostage situation that is what counts. If the BG lives to be sewed up and brought to trial, or not, it matters little. In a non-hostage situation, ya shoot the gun, the guy lives, ya win. Ya shoot the gun, the guy dies, well, he woulda died if ya shot him center mass, so yeah, the point is at least ya tried. In no case is it likely ya cause him to fire, as his gun is unlikely to still be in his hand,m and if it is, the hand and/or gun will be Tango Uniform.