I'm sure you've probably heard about the parable of the frog.

If you put a frog in a bucket of very hot water you can be sure the frog will jump right out before he gets boiled. So would you !

But put that frog in a pot of water at room temperature and then ever so slowly turn up the heat and you’re going to have one very contented frog.

And by the time that water gets to the boil, he’ll be far too groggy to do anything about climbing out.