He was humming to a Britney Spears song while you walked into his lab after knocking. “Hey Donnie” you smile and walked over. He didn’t look up and rather turned away in his rolling chair. He was in his engineering zone.

“Hey y/n” he said after a few minutes “Did you knock? It’s 6:27 pm why’re you here at my lab?” He had a slight annoyed look on his face but tried to be more polite and welcoming like Raph told him to be.

You walked over calmly deciding not to mess with him right now.