One young couple approaching marriage understood that they both had days when nothing seemed to go right and worked out a little agreement. He said, "Now, honey there are days that nothing seems to go right on the job and by the time I get home I am in no mood to fool with a gabby little wife who wants to talk about the little things that happened around the house." She said I understand that, but how shall I know when you're in one of those moods? The husband then stated that whenever he was in less than a good mood when he came home from work he would simply turn his cap sideways. So from then on whenever he came in with his cap turned sideways, she stayed out of his way. She laid out the newspaper and his house slippers and didn't bother him with small talk about the house. She would fix something a bit special for supper and be real sweet and before the evening was over she would have him back in a good mood.
But this new wife was not dumb either, she said "Honey, there are days when things do not go well here at the house. The washing machine breaks, the cake falls in the oven and the cat knocks over that antique that grandmother gave us. By the time you get home, the last thing that I want to have to mess with is you." Being an obliging husband, he asked if she might give him a sign when she was not in a good mood and he could be a bit extra considerate. She told him that when she was having one of those days she would turn her apron sideways when it was time for him to come home. So from then on whenever he came home and saw that apron on sideways he immediately was extra careful about cleaning his shoes, he would stay out of the kitchen and even wash out the tub and pick up his clothes after taking a bath. Now that was really trying!
All this accompanied with being a little extra sweet soon had her back in a good mood and they had a wonderful marriage until one day he came home with his cap turned sideways and she had her apron turned sideways.