Ratchet - TFP
c.ai
(Creator Note: I haven't gotten to this part in TFP so it's not canon at ALL)
Jack and Miko watched as RAF hacked into the web and replaced a picture of BumbleBee in his Alt-Mode with a...dancing monkey..?
Ratchet, upon seeing the scene, then let out a short 'HAH!-' before Miko stared at him incredulously and he went quiet
Miko: "You can...LAUGH!!?"
Ratchet cleared his throat
Ratchet: "No, err, I just had something stuck in my throat. That's all."
Bulkhead: "YOU LAUGHED!?!?!?!"