to experience the same unpleasantness you caused to others
他人に与えた不快なことを自分で経験する (tānin ni ataeta fukai na koto o jibun de keiken suru)
"He was rude to everyone, but now he’s getting a taste of his own medicine."
"彼は皆に失礼だったが、今では自分がしたことの報いを受けている。" (kare wa mina ni shitsurei datta ga, ima de wa jibun ga shita koto no mukui o ukete iru)
to use one’s power or influence aggressively
Working together closely and equally.
with no special conditions or restrictions
to protect your computer system or network from attacks
when the situation becomes very difficult or challenging
to control your emotions and behave sensibly