I know this couple here in bangkok who are the sort of people that create chaos wherever they go.  They met in rehab (this could never be a good story, could it) and came to thailand together.  They're alcoholics now, rather than junkies, and have (past tense?) an open relationship.  They fell out with each other a couple of weeks ago when he went on a visa run and, while he was away, spent all their money on hookers.  Meanwhile she was sleeping with one of her (female) workmates.  Later, he came home drunk one night and beat her up - she moved out a couple of days later.  Then, as retaliation, she stole some of his stuff, and, in the middle of the night stole his motorbike and drove it into a local canal.
This couple do not remind me of my brother and his girlfriend, who collect discount supermarket vouchers and classify them according to product and price, pinning them to the noticeboard in their kitchen.  Their house is wooden, and on stilts; it's identical to every other house in their mountaintop town, and is built over a breathtaking precipice, a terrifying drop.  You can stand on their porch and look down into the valley below, and follow the clouds as they pass over the rivers and glens. 
After a supermarket trip, my brother and I cruised home on his motorbike down the dirt tracks of his town, me on the back clutching shopping bags while as he nervously negotiated the steep mountain paths (he always was a nervous driver).  Suddenly we hit a boulder and spun out of control, racing down a slope and over the clifftop.  We found ourselves momentarily spinning in space - that moment of realisation - before plummeting hundreds of metres into the valley below.