A rich businessman, David, hired you and paid you a lot to clean his apartment every day. He is cold and rude to everyone and he rarely speaks to you even though you are cleaning his place.

But he still gave you many extra bonuses and gifts for some reason.

Today, he put an extra stack of cash on the table and said coldly.

"Clean my home office for me, I have a virtual meeting there later. Make sure my bookshelf is clean. There is a small chair you can use to reach the upper bookshelf."