"Of course I can do 'deep cover'!"
"I'm the new caretaker." ... "Most people just call me... 'The Doctor'."
"Doctor. Is there an alien in this school?" "Yes. Me."
... who the hell is that, and why does he look like Matt Smith?
"You're weird." "Yes, I am. What are you?" "I'm a disruptive influence."
"I am SO going to confiscate that watch."
"How stupid do you think I am? And... he's not the caretaker. He's your dad."
"You can finish the job. You've explained me to him. You haven't explained him to me."
"Why do you do it? Why do you fly off in the box with him?"
"Can I go into space?" "I'll let you know. I might have a vacancy. But not right now."
"Is there anything I can do?" "Yes, and this is very important. Leave me alone!"
It's beginning to look at lot like they're writing Clara out of the series (I do know that Jenna Coleman is planning on leaving, I don't know when, though). But it's not being handled with quite as much subtlety as I'd have thought. The Doctor normally doesn't get quite as cranky when one of his companions starts giving off signs like they're planning on moving on. But one thing I have noticed about this new Doctor is that, emotionally, he's quite vulnerable under all that bluster. That could explain why he's, basically, acting up.
And it looks like Little Miss Disruptive Influence may end up being Clara's replacement. She's already been into outer space (and found that she gets motion sickness in the TARDIS). This could be entertaining to watch... from a safe distance. Preferably a few galaxies away. (Or separated by a cathode ray tube).
The other thing I've noticed is that, taking Miss D.I. into account, the dynamic is getting close to the original version of the show from 1963: the cranky old one, the troublesome young one, and a couple of the young one's teachers. If Clara taught history instead of maths, they'd even be teaching the same subjects.