But I wasn’t finished! How to get coworkers to stop interrupting you

You are in the middle of a presentation and there is the one coworker that just can’t stop interrupting you.  How do you handle the situation?  What can you do ward these interrupts in the future?  Get some help in this monster.com article by Elana Lyn Gross. https://www.monster.com/career-advice/article/how-to-get-coworkers-to-stop-interrupting-you-in-meetings-1116