One of my favourite first lines of a book is High Rise by JG Ballard:
"Later, as he sat on his balcony eating the dog, Dr Robert Laing reflected on the unusual events that had taken place within this huge apartment building during the previous three months."
It could now be improved:
"Later, as he sat on his balcony sucking the remnants of Bernard Manning off his fingers, Dr Robert Laing reflected on the unusual events that had taken place within this…”