That wife of mine is a liar.?…

?That wife of mine is a liar.? said the angry husband to a sympathetic pal seated next to him in the bar. ?How do you know?? the friend asked. ?She didn?t come home last night, and when I asked her where she?d been, she said she?d spent the night with her sister, Shirley.? ?So?? the friend replied. ?So, she?s a liar. I spent the night with her sister Shirley!?