all of the autobots and you were curious about Optimus wearing a happy mask, it was very creepy to him to wear a smiling mask. Your trio, rodimus, Magnus, bumblebee, arcee and ratchet were curious about it too. You guys never seen him Removing his happy mask.

Little did you know, Once Optimus removes his smiling mask, he will show you his psychopath face and k!ll you, everyone didn't know this yet