i think a lot of you'd be surprised at how much some gangstas DO practice. i'm not talking about some 15 year old punk kid who stole his uncle's gun, i mean career criminals, who've probably been hardened by some prison time, and already have a murder or two under their belts. i grew up in a neighborhood full of those guys, some of them kids i grew up with. it wasn't unusual to hear gunfire at old adanboned lots, inside burnt out buildings, or down by water, under the Whitestone Bridge on the Bronx side.
another thing to think about is this: there are quite a few criminals who have served in our military. many might have been discharged for any number of reasons, some may have served in combat. either way, these men have military training. there are stories where a few have gone back to the ghettos they were raised in, and back to the life they led before they were soldiers. it's a sad thing to think about, but it does happen. now, how many of them do think would apply their training to criminal activity? most, i think. one of my father's friends, who served with him in Vietnam, is an example of this. when he came home, he went back to the old neighborhood, and fell in with his old crew. he went on to be a higher ranking member in a violent hispanic gang, mostly because he could train the other hitters to shoot, and use military tactics to execute hits on rival gangs.
lastly, i think divemedic hit on the head :under no circumstances should you ever underestimate an armed opponent. no matter if he's a 18 year old punk kid, or an Army Ranger, i'm going to treat him the same: a deadly threat.