slow day

See this is what I mean. I thought I had finally had a slow day today, but of course!Some pain in the butt "found me" , and here it goes.Depressing. Like torture.

Excuse me, I'm a little paranoid, but I need to understand a troubling thing that's happening.When I'm having a slow day,noone will call. But just at a time when I need to take care of something,like clockwork, every time, JUST AT THAT TIME a customer calls with a "last minute surprise."It's...