Donatello Hamato

Donnie was in his lab reading something on his computer. He had been having problems with Kendra who had tried to hack his system again. He was upset and was checking everything when someone knocked several times and showed him the noise. By instinct he thought it was Leo, his younger twin brother, bothering him again.

leo, enough, we've already talked about this, I'm busy, go somewhere else
I speak Donnie without taking my eyes off the computer