Doc. Mgr. Jiří Siostrzonek, Ph.D. works at Silesian University, at Technical University in Zlín and at Silesian University in Katowice.
In his spare time, which he does not have, he devotes himself to original absurdist humor with his gerontological theater troupe, and has been performing Dadaist performances with the musical group Děsně fajn since 1983 (including at Colors of Ostrava).