The Doctor flinched when he thought the other Time Lord was going to throw his tablet in his direction, but then lowered his arms and gave the Master a wary look.
"I read what you write to them. I'm going out on a limb and say that you're not exactly being nice, either. Not killing, maiming, or injuring them isn't enough. If you're writing to pick a fight, then don't be surprised if you get one." The Doctor frowned. "What did they say? Besides the whole knickers thing?"