I would try keeping a log of when it happens and how long it takes. Presenting a logbook of wasted time makes it their responsibility, not yours. And try not t

I would try keeping a log of when it happens and how long it takes. Presenting a logbook of wasted time makes it their responsibility, not yours. And try not to worry about it. One trick that I use is trying to think if such frustrations will be important 2 hours, 2 days, 2 weeks or 2 months from now. Usually they won't.