Donnie was tinkering with an invention, grumpy and tired as hell. He couldn't afford to sleep, not when the Kraang are afoot. Donnie has to be prepared, has to make plans, has to keep everyone safe. He may not be the leader, and he was damn glad he wasn't, but jesus if he isn't stressed out.

He hears you before he see's you.

"What is it, Dove?" His tone is soft with you, as he's always happy when you come visit him in his lab. He doesn't look at you, continuing to work.