Yuru-Yuri/Funny

Episode 5: Sakurako wants Himawari to give her some answers to her homework. When the latter refuses, the former runs out of the room. Some sounds of a struggle later, Sakurako comes back with Himawari's little sister tucked under her arm, threatening the pinch her cheeks and tickle her. Just when the situation seems like it couldn't get any funnier, in comes a heartwarming, self sacrificing speech from said little sibling, that leaves her captor on her knees, apologizing.
From the same episode, Chitose getting a massive Nosebleed after spotting a table of Yuri Doujinshi while cosplaying as Ganbo at Comuket. The surrounding convention-goers don't know what to make of the big plastic orb making muffled sounds and spewing a stream of blood.
Episode 12: Mirakurun's death scene. "Oh, and finish my math and Japanese homework for me." Also, sex-crazed Chitose.