a person who is dangerously or foolishly creative or obsessed with experiments
危険または愚かなほど創造的または実験に執着している人 (kiken matawa orokana hodo sōzōteki matawa jikken ni shūchaku shite iru hito)
"He looks like a mad scientist when he’s working in his lab all night."
"彼は一晩中実験室で働いているとき、まるでマッドサイエンティストのように見える。" (kare wa ichibanjū jikken-shitsu de hataraite iru toki, marude **maddo saientisuto** no yō ni mieru.)
anxiety about things that are unfamiliar or uncertain
I am the one responsible; I will take responsibility.
to make someone feel happier
to be involved in something too difficult to handle
to lead by example, taking the initiative
to make someone responsible for their actions