I have a few coworkers that don't get the whole "headphones on, he's busy" concept. In some cases, they just start talking as if the headphones aren't even ther

I have a few coworkers that don't get the whole "headphones on, he's busy" concept. In some cases, they just start talking as if the headphones aren't even there. Sometimes, I pretend I can't see them talking and then after a short time, I look up, remove the headphones and say, "Sorry, were you talking to me? I was focused on something." They usually get the message and apologize, but I still don't get it. I mean, emergencies aside, send me an email, a text or any other notification you can think of and let me get back to you.