Only junior wasn't very happy about it, and told his teachers that his father roughed him up when he refused to run any farther. Saint Richard, we learn, went so far as to adopt him. What he doesn't explain is why he feels compelled to let the world know that his son is a former troubled foster child. The answer is, it doesn't. It's a fundamental tenet of foster parenting, adoption and, well, parenting, that to the extent you can, you protect your kid from public embarrassment over the events of his childhood.
Foster parents have to go one step further than biological parents to protect their kids.
They're legally required to keep all of the personal information they learn about their children absolutely private. But Richard is throwing his kid under the bus to save himself and his public image. True, his child was adopted, and it's probably been difficult these past few years. And maybe Richard didn't abuse him. Assuming the abuse didn't happen, Richard had every opportunity to simply deny the allegations, without letting the world know that his son had a troubled past.