Because when you interrupt us, you are burning money!
This is a serious problem that nobody seems to be aware of it.
And for nobody i mean our bosses, our couple , our lover,our pals and even or colleagues.
We are not doing a mechanical task, we can not resume it easily.
We do not love to work at night, when we are tired and sleepy, that just happens because is the only moment when people do not interrupt us!
So please, check this out :
pd: Just a graphical representation of that fucking moment!