"Yes!" McCoy snaps without even needing more than a second to think, already on the goddamn attack because if he has to live through this again, he's not going to carry the burden on his back of something he can prevent. He grabs at the chart and studies it, shaking his head furiously. "There has to be a mistake," he insists sharply. "This can't be right. We can't be back in time a day," he says, slamming the chart back down, aware that it's woken David up.

...who appears to be looking at him with quite the bemusement.

"Leonard," he calmly states, even though he's struggling to speak, the pain evident in his eyes. "I don't think a Vulcan can help you. You need to give up."

"I don't need to do anything," he replies back, trying to size up the situation before the begging starts again. "Everyone, out. In the hall."