[Leonardo finally just rests his head back fully, Sheldon adjusting so he can face Casey.]

...A whole swarm when you were ten, huh.

[Future-Him really does have it together. Not that he doesn't like Casey, sometimes he just says something that's right on the line of comforting and horrific.]

Hey. Back before, in the tank. You started to say something and then we had to stop. ...You were going to tell Donnie and Mikey they died in your time, weren't you?