Disclaimer: The Harry Potter characters are owned by J.K. Rowling. This story is not written for financial recompense.
"Mister Weasley ..."
Ron Weasley awoke with a shock. A very cold shock, he was dripping wet, couldn't move, and there was something across his mouth. When he turned his head, he saw a man dressed muggle clothing facing away from him. The fact that he was naked slowly penetrated his mind.
When the muggle turned to face him, Ron recognised Hermione's father. He didn't appear to be a happy man, in fact, he appeared to be quite angry.
"Mister Weasley." The two words were drawn out, almost hissed.
Ron nodded, unable to do anything else to acknowledge being addressed.
"I suppose you are wondering why you are here," he continued. "It's very simple."
"I came home early yesterday," Daniel Granger stated. "To discover my daughter crying. Again. Because of you."
"I don't like you, Mister Weasley. I never have. I was delighted when Hermione broke up with you. I thought it was finished betwixt you."
"You, on the other hand, do not appear to be capable of understanding this."
"You have made her cry for the penultimate time, Mister Weasley. As you're a wizard and likely too stupid to understand that, it means 'next to last' Mister Weasley. The next time will be the last."
Granger walked behind Ron, grabbed him by his hair. Ron felt a sharp point being dragged slowly across his neck, then he was released. Granger stepped in front of Ron, holding a black knife in one hand.
"This, Mister Weasley, is a Fairbairn knife. The next time you feel it, it will be cutting your throat."
Granger walked over to a low table and picked up a pair of scissors. He proceeded to cut off Ron's hair, leaving a bit of stubble. Ron watched as he placed the hair in a clear bag and put it on the table with the scissors.
"There is no place you can go that I can not find you, Mister Weasley," Daniel Granger said softly. "Nowhere."
Granger picked up Ron's wand, then cut two long shavings from it. "Every time you hold your wand, you'll have a reminder of this conversation, Mister Weasley. Pay heed to it." He proceeded to tape Ron's wand to his chest, then taped a coin below it, leaving the centre portion visible.
"You'll have one other thing to recall this conversation, Mister Weasley." Granger tapped the half-penny with the tip of his knife. "Gringotts," he whispered.
It was a bright, sunny Friday afternoon, clear and quite cold, when Ronald Weasley appeared in front of Gringotts, stark naked, chained to a chair.