Dog Glitch Bug

Well Me And My Mate Were Playing On A Superflat World On Minecraft Pe And We Sporned A Dog Each. We Went Up On The Clip Bored We'd Built And Saw A Load Of Dogs On The Floor Dancing Repetitively. And Then My Mate Disconnected To Put His Device On Charge And When He Got back Something Blown Up In Our House. Please Helpp!!!! Has This Happened To Anyone Else Before? And It Was A Glitch - My Brother Checked 😳😔