Renton decided to stop taking drugs and he has a neat plan how to do it. We see him doing all the preparations and while he recites the plan like a cooking recepie. He seems very determined until he reaches the point of taking a valium to “soothe the pain”. There is an almost indistinguishable change in his narrative when he declares that he only needs one last shot. We see the door he barricaded with wooden boards seconds before opened up again. The determination he build up in a very clean and straightforward way is destroyed in an instant. This has a humorous effect because it is something that most people can relate to for we tend to break our resolutions. In Rentons case, however, it is not to something inoffensive that he is yielding to. The viewer realises that the addiction has a lot of power over him. Enough to break his strongest will.
As the effect of the last heroin shot Renton has taken fades, he simultaneously has to realise that his constipation, caused by heroin, has stopped too. In the desperate search for a toilet he gives the description of a perfect, luxurious and hygienic lavatory. What he instead finds is described as the “worst toilet in Scotland”. The viewer can understand that in a situation like his, he still decides to use it. Less understandable is the