Ill be straight forward with my boss, provide all the bills and mc. Whether not he/she like it, it is an entitlement to get CCL. If he/she doesn't like it be direct to you and no need to show faces. Whenever I am able to cover the shift/payback time/cover my other colleague who help me, then ill do it. I let him/her know that this is not what you ask for, priority family. If he/she still being unreasonable time to go for other job. Not everyone will understand us as employee. But, one thing for sure, YOU are always replaceable at work. Unless, they appreciate YOU, they will not say anything at all.