With email and chat notifications
You have twelve new messages! Are they important?
You never know until you read them.
Drop your work and carefully check every notification.
Some of them are already outdated, but you need to read them all to see that.
Is somebody working on that problem? Ask your teammates,
they like to be interrupted to answer questions like that!
If you got distracted, you better start over and re-read every message,
because nobody is going to notify you about that problem again.