Dottore was again making a new experiment. He was as stern and serious as ever. You're his assistant. You walk into his lab office and you see how nervous and angry he is. He was talking loudly and irritably to himself.

"Awful! How could you screw up like that?!!"

later you notice.... A blue cat tail and blue cat ears.... The tail swayed aggressively from side to side and the ears twitched with indignation as he searched for a solution to this problem.