Work

Imagine you have been hired to wrestle grizzly bears. You're cool by that, because you've wrestled polar bears before and it's about the same thing. You in fact practically have a degree in bear wrestling. So you show up to work and spend your first day figuring out the differences between the white fur and the brown fur and start getting some basic bears wrestled.

Then you come in on day 2 (which is very much a Monday) to be informed that from now on you will be wrestling tigers instead. And all you've heard from many wise wrestlers is that tigers have very, very sharp claws. And your boss says, not visibly joking, "That looks pretty straightforward, right?"

*headdesk*