No regrets really, just some things he ended up thinking about that he otherwise probably wouldn't have. There's a lot of discussion of bullying both physical and emotional. There are some hints of inappropriate topics related to Greg's older brother but they went right over his head. I think on one point they say his brother is reading a magazine with ladies in it. You and I know that's not Good Housekeeping! But DS had no clue that's not what they meant :-)