Some or all of your bike will be stolen. It will. Say it with me now: "Some or all of my bike will be stolen. I have chosen to live in London and I have chosen to have a bike and this is therefore a fact of my life. All property is theft anyway, including- nay, particularly- my bike. The universe is expanding every second and we are all stardust, including the person who will steal some or all of my bike. They are stardust and I will not wish them ill...except when I am trapped on a crowded tube on a Monday morning, surrounding by other stinking stardust, having just spent the last of my wages on my Oyster. Then I will wish them a little ill".