The Comfort of Strangers by Ian McEwan

I think the whole point of this book is: don't be so laissez-faire about your life and your choices that you willingly lumber right into your own demise/downfall. In fact, I don't even feel like Colin and Mary ever made any real choices.. they just went along with what outside influences dictated for them. Maybe it was all the pot that made them so listless and irritable.

"It was the total absence of traffic in the city that allowed visitors the freedom to become so easily lost. They crossed streets without looking and, on impulse, plunged down narrower ones because they curved tantalizingly into darkness, or because they were drawn by the smell of frying fish. There were no signs. Without a specific destination, the visitors chose routes as they might choose a colour, and even the precise manner in which they became lost expressed their cumulative choices, their will." (21)

"Robert was fifty yards away, walking unhurriedly towards him. Colin turned round to look behind. A narrow commercial street, barely more than an alley, broke the line of weatherbeaten houses. It wound under shop awnings and under washing hung like bunting from tiny wrought-iron balconies, and vanished enticingly into shadow. It asked to be explored, but explored alone, without consultations with, or obligations towards, a companion. To step down there now as if completely free, to be released from the arduous states of play of psychological condition, to have leisure to be open and attentive to perception, to the world whose breathtaking, incessant cascade against the senses was so easily and habitually ignored, dinned out, in the interests of unexamined ideals of personal responsibility, efficiency, citizenship, to step down there now, just walk away, melt into the shadow, would be so very easy." (112)

(London: Jonathan Cape, 1981)