London Heatwave

Spring finally arrived last week after a seriously long and cold winter. It got up to about 75 degress F and the headline on the newpapers here was "Heatwave cripples the tube". And the Hammersmith and City Line was delayed due to the heat. What is wrong with these people??? The transport system is great on some days, and horrid on other days. That is why I try and keep to the busses, plus they are cheaper.