Last night, I discovered what it is they do! Wanna know what it is?
Apparently, they shoot laser beams from their eyes.
Don't believe me?
But I have proof! I managed to capture a picture of Stella demonstrating her technique- she's still young, which is probably why she slipped up and had her laser beams on both a)while in the house and b)not around sheep.
Amazing, right? I had no idea either.