"You don't think it looks good? I was all wet and couldn't find my hair wax, so..." It had definitely seemed like a good idea at the time. The Doctor pulled the tie free now, watching Jack and wishing he'd be a little less sober, because that would have made it much easier to just go with the impulse to try and make him happy. Wrap his arms around him, for instance. Say sweet things that didn't have to mean much and that he knew would mean a lot to Jack.

Damn, he should have brought a bottle.

"It held my hair up," he finished his explanation belatedly, gesturing at his hair.