Why is it

Why is it that on days that I am up and ready to go go to church, the rest of the family is easily woken, that Joe is the hardest to get up and complains all the time. Now take today when I slept in and did not get up in time that Mr. Joe was up bright and early at 7:30 am!!!! I guess I need to tell him the night before that we are going to church and have him wake us up!!! Might be less stress that way!!