Husband and wife sit together in the kitchen and have breakfast.
Out of the blue she hits him with rolling pin.
After a few minutes conscious again he asks:”What was that ? – Why did you hit me that hard ?”
She: “That was for 25 years of bad s*x.
“He continues eating his breakfast thinking about this for a few minutes and than strikes back and knocks her out.
A few minutes later she is coming back to consciousness and he explains:
“That was because you know the difference between good and bad s*x.