I work in a 17-floor building in London with painfully slow lifts.

You can regularly wait up to five minutes for a lift during the morning or afternoon rush hour. Lifts often arrive only to be so busy that you cannot squeeze on to them. And if you visit the building, the chances are you will hear somebody somewhere complaining about the lifts. They are a source of constant irritation and whinging from me, my colleagues and pretty much everyone on all the floors they stop at.