Do you have one of those jobs involving long, pointless meetings? I used to and I hated it, so I got myself a cool job instead. Anyway, in one of those meetings, let's say you were in the middle of a presentation, really getting into the meat of your big new idea that's going to save the company millions and earn you a big promotion, when all of a sudden - in the middle of a sentence - some jackass busts in and starts shouting questions at you.
Welcome to every day of my life.
Seriously dude. I am in the middle of my presentation. I am on a spinning platform, trying very hard not to fall on my ass on the incredibly slippery surface, telling you everything there is to know about this car. If you could wait thirty seconds and, oh, I don't know, maybe actually listen to the words that are coming out of my mouth then you'd have the answer to your question. If I don't answer your question during my presentation, I will be more than happy to do so afterwards.
I guarantee during my presentation I will cover horsepower, torque, 0-60, new features for this model year, safety features, any big bells and whistles. I will not make competitor comparisons on the mic, at least not by naming names, and I probably will not say the price on the mic - I find that to be distasteful - but am happy to tell you all about every single trim level there is and line item competitive comparisons when I'm done. STOP YELLING AT ME.
If you had any sense of the definition of polite, you would realize how rude it is to start shouting questions at someone who is clearly in the middle of a presentation. You don't think you're out of line for doing this? Try it at your next work meeting and see what happens. Then let me know how long that unemployment line is.