Who doesn't know the following scenario: one is on vacation, maybe on a farm. Letting it all go easy, the sun is shining on your head, cowbells are ringing all around, everything feels just wonderful.
And then ... there comes the inevitable call from a colleague. "Johannes, could you have a look at this thing on site xy and just fix it. We need it till tomorrow." I won't go into if that is a healthy idea on a vacation, but normally I'll dive headlong into the problem. Of course I took my laptop with me just in case something would come up ...