If you find yourself waiting in a long queue at an airport or bus terminus this holiday, will you try to analyse what it is about queuing that makes you angry? Or will you just get angry with the nearest official? Professor Richard Larson, an electrical engineer at the Massachusetts Institute of Technology, hates queuing but rather than tear his hair out, he decided to study the subject. His first finding, which backs up earlier work at the US National Science Foundation, was that the degree of the annoyance was not directly related to the time. He cites an experiment at Houston airport where passengers had to walk for one minute from the plane to the baggage reclaim and then wait a further seven minutes to collect their luggage. Complaints were frequent, especially from those who had spent seven minutes watching passengers with just hand baggage get out immediately.