I guess it depends on style and purpose.
Two years ago I got a 4:30 am call to respond to an area just outside of Belle Glade, FL, a rather poor town made of migrant workers and such that mostly cut cane. Apparently one of our officers was involved in a shooting near one of the many lakes in the area.
So the story goes he went up there for a little fishing trip. He got a motel room right across from the lake and began fishing...at around midnight. He had all the lights on in his motel room and the TV volume way up. And he was walking back and forth from his room to the lake. Somewhere along the line, around 2 am, two, shall we say, underprivileged youths, were scoping him out. Did I mention that on this fishing trip he brought along his Colt M4 and P238?
At some point in time while walking back to his room from the lake (he later mentioned to investigators that the fish didn't seem to be biting) the two youths decided to follow him to his room. Hearing the "flick" of a blade, the cop turned at which time the youth with the blade now held at his side ordered the cop to turn over his wallet. Putting both hands up and telling the kid to relax, the cop reached back as if getting his wallet and produced a pistol which rang out with two shots. The other kid ran off. Our off-duty officer called 911. Some theorize that maybe he was fishing for more than what was in the lake.