Country singer Sara Evans’ ex-husband Craig Schelske wants joint custody of their three children, as he’s claiming she brings them to parties when she’s on tour, TMZ is reporting. In court documents he filed on April 27, he said she also surrounds them with drugs and alcohol. In the documents he filed in Tennessee, Schelske added that he wants to “protect the children from the likelihood of substantial harm” during Evans’ upcoming tour, which starts next month. He also claimed that since he was on tour with Evans before, he has “first-hand knowledge that the children are exposed to inappropriate conduct, spend little time (with Evans) and are placed in...