According to Anne, Mr. Dussel is always complaining about how she does not have good manners and how nothing is right about her. Anne is part of the family who welcomed him to the Annex, even so he doesn't treat her properly. Another complication created by him was that changes in the family's schedule had to be made. Anne had the room for herself in the mornings, but that had to change because Mr. Dussel said that he is not at his best in the morning.
Two of the complications created by Mr. Dussel's presence in the annex are:
1. His insistence on communicating with his wife and other people outside the annex, which puts them all in danger of detection.
2. His strictness and stinginess, which inconvenience Anne and other members of the annex.
Explanation:
Mr. Dussel is a strict disciplinarian and has too many opinions about etiquette, he constantly tells Anne to keep quiet but then disturbs everyone with his morning exercises.
He also got a package from his wife but decided to keep everything to himself, he does not share his sizable stash of personal food with the other residents or their Dutch helpers.
