He keeps Annie in check, making sure that she isn't succumbing to her laziness, and while he may get exasperated by her many times, Hans trusts Annie to do a good job and comes to her aid when she needs it.
He keeps Annie in check. She isn't succumbing to her laziness. He is making sure this. He may get exasperated by her many times. Hans trusts Annie to do a good job. Hans comes to her aid. She needs it.