And the funny thing about that scene was Dylan's reaction in that he was annoyed by someone who was looking at him from his garden, when the guy apparently was just visiting to warn him.
Dylan didn't seem concerned that he was stood naked in front of the window performing some sleight of hand and that anyone walking up to the house would have seen him. Even if it was just the pizza delivery guy or the daughter home early from school.
And yes, they really need to fix the locks on those doors. Anyone can and does just stroll on in!