Karl talks about the brain having two sides and "sensing" when trouble is near. He recounts having eaten a beetle, having been lost in London and having talked to a ghost in Cornwall. Karl then reveals that the ghost encounter was something his mother told him, rather than a personal memory of his. He talks about his aunt not wanting double glazing. He says that if he was a manager, he would sack staff who were absent due to thick snow impeding their route to work.

Karl's Diary includes his belief that Martians are more advanced than us because their days are longer, allowing for greater productivity. Another of his diary entries is about a pub whose new owners have been criticised for barring a regular customer, who is a horse.