Your pet keeps it for as long as you want... unless you bug your boss for a raise... 9 times out of 10 you ask... your pet gets fired.

It's just... there to make a little bit of sP daily.

Plus, if your pet has read at least 500 books, you have a chance at getting a job that pays 5000 daily. Of course, you have to actually go every day to collect it.

My pets are at level 5, well 2 of them are anyways. One of my babes got fired yesterday.