I've found exactly the opposite. People love to randomly interrupt me by showing up at my desk with questions. I tell them to use Slack instead, as this allows

I've found exactly the opposite. People love to randomly interrupt me by showing up at my desk with questions. I tell them to use Slack instead, as this allows for asynchronous communication that doesn't interrupt my workflow. I also push people to ask questions in a channel instead of directly to me, as usually someone else will help them before I even see the question.