Gods yes. I was at a conference with an older gentleman who interrupted every talk he was at, including the keynote. When he tried it with me I ignored him an

Gods yes. I was at a conference with an older gentleman who interrupted every talk he was at, including the keynote. When he tried it with me I ignored him and kept on talking, because he was rude and out of line. It still wasn't fun, but at least he didn't bother me anymore. We should be encouraging people to give talks so we can hear about new and different things. If you don't like the talk it's easy to leave: if you intimidate the speaker into not presenting all you've done is be a bully.