so my beardie is crazy and a total spaz. every day he sees another “lizard” in the reflection of his glass. he gets all tough and puffy and rubs his face against the glass, after he tires himself out, he’ll wave his arm at his reflection, like, “okay, okay, you won..” and then goes back to basking. he never seems stressed after and has never shown signs of stress relating to that otherwise, so no need to worry. just thought it was funny.