to treat someone the same bad way they treated others
относиться к кому-то так же плохо, как он относился к другим (otnositsya k komu-to tak zhe plokho, kak on otnosilsya k drugim)
"He was rude to everyone, so I gave him a dose of his own medicine."
"Он был груб с каждым, поэтому я дал ему дозу его собственной медицины." (On byl grub s kazhdym, poetomu ya **dal yemu dozu yego sobstvennoy meditsiny**)
Someone who is too interested in other people's business.
an early warning of potential danger
to cooperate with members of the opposing political party
in the end, right will triumph over wrong
to misunderstand someone or something
the use of willpower to overcome physical problems