His dad had been knocked out and if he didn't stop her, his mom was going to get knocked out, too. Only his mom would be standing longer and it meant it would take something pretty strong to take her out. She'd be hurt before she went down.

That was when he figured out that if Danny Phantom couldn't stop his mother, then maybe Danny Fenton could.

Of course, he wasn't letting her know they were the same person, so he ran off into the bathroom, transformed, and ran back out again, human and clumsy and relatively slow, ducking thrown chairs, diving past a bouncing kid in a bubble, getting knocked into a chair and breaking it by a hurled person, and then running up to her, now scraped and slightly battered.

"Mom! STOP!" he yelled as loud as he could, pleadingly.