I love the simple idea of a vampire character who is so old that he thinks he knows everything, but because it's so trivial to him he can't quite remember the specific details correctly yet has it inform all his decisions
Bulls-eye with the Tucker chatter. But it would have been even more so if you were to act it out with a sock puppet. A sock puppet with his mouth agape and a puzzled look on his face.
His "joke" was アルミ缶の上にあるミカン in other words "a mikan (similar to orange) on top of an aluminium can" They have the same sound. It's a classic dad joke and he did it on purpose. His final phrase was 頑張って働きます(I will work hard and do my best) but it got translated as "Adam is a bug" lol