"You don't need to sound like a monkey to get someone to stop talking."

Although, I must admit, that would work as an adult, if just for the sheer bizarreness of it. But I'm trying to teach my kids skills for handling a variety of situations in a positive way, so letting this practice simply pass unnoticed wouldn't really be in the best interest of my child, right? So I gave my little guy some tips on getting a word in while others are talking and explained that resorting to monkey noises probably wouldn't get the desired results. He grimaced, but then said (rather loudly), "Excuse me, I have something to say here!" While not exactly what I was going for, an improvement nonetheless.