"So," the woman asked the detective she had hired, "did you trail my husband?"
"Yes ma'am. I did. I followed him to a bar, to an out of the way restaurant and then to an apartment."
A big smile crossed the woman's face,"Aha!! Then I've got him!" she said, gloating." Is there any doubt what he was doing?"
"No ma'am." replied the sleuth, " It's pretty clear that he was following you!"