Eating candy* while reading a book about how we need to drastically reduce sugar consumption.
See also: I went through Taco Bell drivethru the other day and made sure to get a diet Pepsi, because somehow that made the meal less unhealthy. :D
*side note: I bought the book before going to the candy shop, so I taught the 2 people working there what cognitive dissonance was
*additional side note: I saw a Vegan cooking magazine and Barnes and Noble with a cover story of “Sharks: Not the Cold-blooded Villians You Thought.”
ETA!!!! I mis-remembered the magazine article title but I found the magazine cover and added the picture as a comment :D