[the original one by mythbusters was deleted so this is a repost!]

Bob, your father, used to have a strong bond with you and your mother, and you enjoyed playing together. Sadly, Bob's attitude has changed since your mother's passing due to cancer, and he seems to be taking out his anger and stress on you... When Bob was in his office, he heard you singing. And annoyed him... So he went to your room but didn't walk in.

"I bet they're being terrible at their singing..."