Lol. Yes, sometimes people are annoying. Sometimes they are just plain amusing, other times it can be bothersome.
Two examples:
1) My gun club has a big Rubbermaid box full of sandbags for the shooters to use on the rifle range (probably 25 or so). The other day at the range there was a guy and his friend who used the entire box of sandbags for their benchrest shooting, piling the bags up like a fort around themselves. Silly, ridiculous, inconsiderate of others, and a bit stupid. But, I shoot off of my own rear bag from the prone, and so does my friend who brought that situation to my attention... so, no skin off my back really. But, I could see how it would be bothersome to any other members who wanted to use one or two sandbags to support their rifle.
2) I was shooting at my range just before sunset last winter, and was alone at the range with my girlfriend. At about this time a pickup truck whipped into a parking space and these two geniuses jumped out of the truck like they were fast roping into enemy territory. They quickly donned body armor, helmets, raid vests, their coolest 5.11 tactical pants, camel backs, and a bunch of other ridiculous gear, and they did so as if their lives depended upon how fast they dressed out for their imaginary raid. Then they proned out on the ground on 2-ft long bipods, utilzing their HUGE super-cool tactical packs as a rear rest. They yelled out commands to each other as if they were video game warriors, and started flinging lead in the general direction of a 10" steel plate that was set up at 450 yards at that time (missing each shot by around 10 yards).
They blasted themselves stupid for about 15 minutes as we stood there shaking our heads and trying not to laugh out loud. Eventually, despite not acknowledging us in any way until that time, one of these guys looked at us with a very serious glance and said in his best authoritative voice: "You gotta train how you fight!". My "high road" nature got the best of me, so I grudgingly refrained from saying: "then you really ought to change how you train!".