Chat apps. What's the idea? Those are basically tools of violence. They give you a possibility to in real-time stop someones work and start demanding service. Now. Immediately.

Usually people send you first email and then they after 10 seconds chat "did you see my email?? read it! serve it! please me!" Usually it's just a small request to document something, review someone else's document. Do it ASAP. If you were coding something, then drop it and do someones job for them instead.

You got a request for me to create some verification case list? Put it into my backlog. I might start doing that in week or two. Or month. In case there's nothing else more important. Since I know that you are working with something that you think is the whole universe, but trust me, I got my own problems already.

But hey, if I don't reply to your chat in a minute, please feel free to walk behind me and start explaining your life. No need to wait even for me to get my headphones off. "Oh you are in conf call? Well, this is just a quick thing blaa blaa..."