"Family Day" is supposed to be a day of happiness, support and celebration of progress in sobriety on 'Celebrity Rehab with Dr. Drew' (Sun., 9PM ET on VH1). But things quickly spiraled out of control when Jeremy Jackson's sister made a joke in very poor taste.

Jackson has become good friends with Amy Fisher in rehab, but his sister didn't make the connection when she first met Fisher, "because you didn't introduce yourself as 'Buttafuoco face shooter."

Now, that's a very harsh thing to say to someone. She has no way of knowing how Fisher is tortured emotionally about what she did, though the fact that she's in rehab says quite a lot about how she's coping with something.

Jeremy Jackson isn't your usual candidate for 'Celebrity Rehab.' He spoke Wednesday on 'Access Hollywood Live' (weekdays, syndicated on NBC) about taking multiple controlled substances, but rather than the more popular "party drugs," the former 'Baywatch' star had problems with steroids and human growth hormones.

Jackson is seen in a clip revealing a laundry list of substances to Dr. Drew Pinsky, the main counselor on 'Celebrity Rehab.' Jackson noted that keeping in shape without the substances has been a challenge. "It's a trade-off," he said. "I'm 188 pounds. When I went on the show, I was a little over 200 pounds. So I've lost at least 15 pounds, some of it muscle."

Jackson said he's lost muscle and gained fat, which he called a "bummer." No more so, we're guessing, than going on 'Celebrity Rehab.'