I spent seven years feeling this way, once, so I can vouch for this:

Men approach even highly familiar women with the same dread really old people have of computers: Touch one wrong button and life will never be the same.

From The Neurotic Gentleman’s Guide to Bringing Up Spanking with Your Wife or Significant Other; or C’mon, Honey, You Know I Was Only Kidding! at Functional Ambivalent.

One of the many reasons I love The Nymph is that she doesn’t make me feel this way. If I were, metaphorically speaking, to show up at her bedroom door with four leather belts and a gallon of blueberry syrup, the worst reaction I can imagine would be some laughing version of “In your dreams, Buster!” Far more likely: “What? No whipped cream?”