"Look at you, ordering me around." Sirius bopped Harry's nose, but he got up, walking just far enough to get a kettle from the kitchen and hang it over the fireplace in the living room. There, he didn't feel like doing anything more. "This place is delightful compared to Grimmauld Place. I've been telling Harry."

Which maybe didn't help his fears, but hey. Made for good scary stories. "At least there's a lot less cursed stuff and I locked most of it away by now."

Dark houses with scary items all around seemed like a pretty normal childhood environment for Sirius. For obvious reasons.