Her husband spent so much of his free time at the bar that his wife finally decided to tell him how much it bothered her. She often imagined him enjoying himself with friends while she stayed home alone. She wanted to understand what made the bar so special that he found it difficult to stay away.

One evening, he surprised her by inviting her along. Perhaps seeing the place for herself would help her understand his attraction to it. For once, they would spend their evening together rather than apart.

When they arrived, her husband asked what she would like to drink. She had no particular preference, so she told him to order whatever he usually drank. She figured that trying his favorite drink would help her discover what he enjoyed so much about the place.
Her husband smiled and quickly delivered his response. He reminded her that she always complained about how much time he spent at the bar. Now that she had tasted his favorite drink, did she still believe he was having such a wonderful time?

His clever comeback turned her complaint into the punchline. She had wanted to understand why he enjoyed his evenings at the bar, but instead discovered that his favorite drink was hardly enjoyable. He used her reaction to defend his habit without answering her original question.

The joke ends with the husband seemingly winning the argument. His wife came along hoping to understand his attraction to the bar, but one unpleasant sip was enough to convince her that she could happily stay home. At least now she knew exactly what he had been drinking all those evenings.