Oh, that. Ianto snorted and looked away, smiling a little. "I'm told I'm a terror on the road." Which, he figured, is how you had to drive to get anywhere quickly in an emergency. He couldn't understand why people complained. They got there in one piece, didn't they? Well. Mainly one piece.
Ianto shook his head, just a bit, and glanced back at Rose, embarrassed and smiling still. "I ... try not to hurt him. He's a good deal of everything to me." Very embarrassed now, to have admitted that. Ianto's head ducked and his ears flamed red, but it was dark and the flush was hidden. He hasn't ever admitted that to anyone. Not even to Jack.
"If you don't mind, I think I'm going to change the subject now, please?"