p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Helvetica} span.s1 {letter-spacing: 0.0px} A teacher who is trained to be a good shot should have no problem whatsoever sensing the presence of an active shooter while in the middle of teaching a lesson on photosynthesis, unlocking the closet where the pistol is kept, getting off a clean shot, and taking out a shooter armed with an assault weapon