Sabine Hain's letter about 'chilly offices' in Hong Kong (South China Morning Post, March 9) was great. Every day, I take the ferry from Mui Wo to Central. Some days, the temperature in the ferry is colder than the temperature outside. This is great in the summer but was not enjoyable during all of January. I have experienced the same problem with the taxis in Central. In January, most taxi drivers had the air-conditioning on full blast, even though they were driving in the front with coats on and I sat freezing in the back. I wonder how many other readers have had the same experience as me, of walking into a Jockey Club outlet on a cold day and finding the temperature is lower inside the Jockey Club building than it is outside. I once asked members of staff at one of the outlets why this was so. I was told this was the rule and that I should speak to the manager. However, the manager was not there. The employees just wrapped up and continued working. If this is the case at all Jockey Club locations, then it is a terrible waste of electricity. Hong Kong is the only place I have ever seen that lacks common sense when it comes to air-conditioning. The rules of thumb to follow are simple: When it is hot, you turn on the air-con. When it is cold, you turn it off. Someone needs to re-programme the robotic thinking Hong Kong uses regarding air-conditioners. Let us get some common sense and thereby save some money. TROY HODGES Lantau