A/N- So this one is not super Sartha-y, and I'm sorry about that.
December 11th- Slipped on the Ice
Dean doesn't say anything the entire drive home. Although, Sam supposes it's pretty embarrassing to slip on a patch of ice outside the garage, and have your coworkers phone your younger brother because you probably have a concussion.
He's not pleased about Sam driving the Impala, but he'd also thrown a fit about leaving it. Concussed Dean is basically a toddler.
When they get home, they find Martha and the Doctor stringing Christmas lights around the TARDIS.
"What happened?" Martha asks, because it's three hours before Dean is normally home.
"Nothing," Dean says as Sam answers, "He fell on some ice and probably has a concussion."
Martha leads them inside and sits Dean on the couch. "Let me check you out."
Martha concludes that Dean might have a concussion, but it's probably pretty minor. "But someone should probably still wake him up every two hours or so if he falls asleep."
Dean complains all day, but it doesn't stop them from assigning Castiel the task of waking him. This probably isn't the most diplomatic choice, because Dean certainly hasn't forgiven them for abandoning him and Cas to the Doctor's romantic schemes. But Castiel doesn't sleep, so it makes the most sense.
It must be around one, and Sam's returning from the bathroom when he hears Castiel wake Dean up.
"Seriously, I'm fine, you can stop now," Dean says.
"Martha said every two hours," Castiel says sternly, and Sam just knows he's got the 'why must you be so difficult, Dean' face on.
"Yeah, but you could just, I don't know, use some kind of angel mojo to make sure I'm fine."
"I feel better checking this way. I like talking to you."
Sam creeps back to bed, but he can't help thinking (though he'll never admit it, dear god he is not dealing with that) maybe the Doctor has a point.