To Galina Grigorevna Galushko, a freight engineer on the Sverdlovsk Railway, and Yuri Venediktovich Svetlakov, assistant to the machinist, who worked at a milling plant.

In the university, a KVN team was organized in which Sergei became a captain due to the fact that he won in the "Knight of the Institute" competition.

Although, he did not manage to make any assessments: at the end of the greeting of the "Dobryanka" team Sergei Svetlakov, following the calls of the actors who were playing on stage, began to dance, including at the judges' table, after which the guards withdrew him from the hall.

As it later became known, this act, which looked like improvisation, was a pre-prepared part of the "Dobryanka" performance and was approved by the leader Alexander Maslyakov.

Together with Garik Martirosyan, Semyon Slepakov, Arthur Tumasyan and Sergei Ershov, he wrote scripts for KVN teams.