Sam's doubled over and in pain, so it takes a moment to understand where the sudden deluge is coming from. For a moment, he thinks it's raining, and then he thinks, no, that's stupid. They're inside. Must be the automatic sprinkler system.

Send hot water down his legs.

It's only after another stunned moment that he realizes what it is, that his femoral artery has been severed, and it's gushing. He presses a hand to it, but the blood wells around his fingers. He's seen this often enough to know what it means. Even if Hawkeye was here, he thinks, or Bashir, he's still a goner. And anyway, he reminds himself as he falls to his knees, he doesn't want them in the middle of this. If they're even... he can't remember if they're alive still.