"Do I rue a life wasted doing crosswords?
Yes, but I do know the three-letter-word for regret." ~Robert Brault
...the long line is standing still due to the clerk doing a crossword puzzle. Impatient, Lisa completes the puzzle herself, only to find herself addicted to the puzzles. Eventually, she becomes so obsessed with them... -- in Homer and Lisa Exchange Cross Words
"The drive to fill in empty spaces is more likely a mental illness than a cure. While 'puzzle addiction' is usually meant as a lighthearted metaphor, the term contains more than a nugget of truth." from a book review of From Square One: A Meditation, with Digressions, on Crosswords by Dean Olsher