Me: Hey, I'm going to go upstairs and take a shower.
C: (anguished sob) Mom! Why did you tell me that?! Now that I know you're going to be upstairs, I'll be scared to be alone down here. You shouldn't have told me that!
Me: Okay. I guess I'm going to be... in the kitchen... for a while.
(I leave and take my shower. C is fine.)