Write the start of a story using five habitual elements of a character's life.

(Since my stories never seem to start this way, I thought I'd go with it this time:)

Sam was a simple man who relied on simple things. Simple things, as he considered them. He relied on polished shoes and designer suits. He relied on the chip shop downstairs for his Friday fish and chips. He relied on the sleeping pills he got from the chemist to knock him out before the regular train passed by his flat and messed up his sleep schedule. But if there was one thing Sam didn't like to rely on, it was other people. Other people were unknown variables in the equation of his life. Relying on them - trusting them, would mean knowing them, and that would take more time than he was willing to invest. His mind was consumed by the calculation of worthwhile investments.
This morning, however, Sam was to find that not all the things he relied upon were as, well, reliable, as he believed. The traditional analogue alarm clock that had woken him up for the last ten years at six didn't go off. The milkman, who usually came a little after six, and whose tinkling of bottles below his bedroom might have disturbed his light sleep, didn't show up. His telephone, which the office tried again and again to contact him on when he hadn't shown up by 9.30, had fallen off the bedside table and its vibrations were muffled in his laundry basket.
When eventually overwhelming fact of daytime eased him from his narcotic slumber, it was almost eleven. The realisation made him feel sick. He hadn't been late for work in almost four years, and the last time hadn't been remotely his fault. What should he do? It would be embarrassing to walk into work at this time, with all eyes on him. Calling in sick, then? A disgusting thought. He hadn't had a sick day since they sent him home that one time he'd collapsed in a board meeting. A moment of weakness he didn't want to repeat. He didn't even take regular holidays, except at Christmas, to visit his parents.