Agree entirely with MWD, had a guy in situation where if he went OOA would have been an admin burden due to family issues. I got all the facts and went to the Chief Clerk and discussed it. He asked me to put it all in an e mail and he would support it, within 2 hours of sending the e mail the guy was off the OOA (the guy is not a skiver either). May not resolve your situation entirely, but could give you some breathing space. Good luck