It takes a beat to realize his mistake. A careless slip of the broken mind, but Neil's kicking himself in an instant. He's throwing his head back to see Dogmeat. More importantly, to clearly see the form of ED-E gazing desperately from the open door.

Alex curses, and Neil furiously signals both dog and eyebot to go back into the room, hoping to whatever deity above that Tanks is still too stupid to notice.

Dogmeat instantly understands and turns to go, toward the friend waiting anxiously at the door.