Stefan Mross (50) had a clear side-show against the ZDF TV garden and its host Andrea Kiewel (61) at the latest edition of his ARD show on Sundays at Europa-Park Rust. While he greeted his audience at summer temperatures, he dropped a seemingly casual remark that had it in him: "The dear colleagues behind me can still relax, can still drink a coffee, a white beer or anything else," said the moderator, according to Focus. Afterwards, he called hi…