In my previous job, I was asked to break focus every 15 minutes to check my email and see if one of my coworkers was falling behind on dealing with a queue of tasks, then pitch in if he was. I hated the job in general, but that in particular just ruined any possibility of productivity. Hard for anyone, near impossible for someone with ADHD. Then I got blamed for falling behind on my work. And for being disorganized (we didn't have a ticket tracker, hmmm).