I work 12 km from home, and commute most days. I have (once) walked to the subway, caught the subway, then walked to work, but that took as long as riding, cooling off, showering then work.
I can take a cab, and it isnt that expensive (25 RMB, about 2.5 Euros, USD$4) and it is very easy, if I leave at the same time, it also gets me to work early enough that I have lots of time to do some catching up. However, after work I have to walk a couple of km, and wait until a cab arrives, and in the rush hour traffic of a moderatly large Chinese city, that can be maddening, and on Fridays, horrible. I think it is worse because I know I can go faster than the stuck traffic!
I only catch the cab if there is no hot water in the school apartment, or if there is something I have to take with me that will not go on the bike.
z
If I am too sick to ride, I am too sick to work. If I work when I am too sick to ride then I will just get worse and in the end do less work.