When Taft fights the Oil worker in the bar, the Oil worker, after being kicked, screams "My Balls" The audio is actually a reused overdub from when Segal's character kicked the animal abuser in the midsection in Out for Justice.
Shooting the gun from under the table, similar to how Detective Keegan keeps a revolver in a holster mounted under the kitchen table, and his wife and son retrieve it to shoot Joey Venza.