At least in my own experience, I'm pretty sure the efficiency argument is not an excuse. There are some days when I really don't enjoy what I'm doing all that m

At least in my own experience, I'm pretty sure the efficiency argument is not an excuse. There are some days when I really don't enjoy what I'm doing all that much (e.g. "One customer says that form with the thing doesn't work — fix that"), but I still hate getting pulled away multiple times when I'm being productive because I can't just immediately go back to being productive, and now I'm doing something tedious and taking even longer at it.