Woes of a lift operator??

The other day while I was chatting with my colleagues during our tea break I noticed the service lift as it opened on my floor. I saw the lift operator sitting on a stool near the panel of buttons.He was expressionless and was mechanically keying in the digits. I suddenly found myself wondering what he must be feeling about his job. Going up and down 12 floors for maybe half a day (if the job was done in shifts) !
I started to think of all those times when I stepped out on the station after a long train journey. The feeling of travelling in a train used to persist for a little more than half a day after which I returned to normalcy :)
If a train journey could affect me this way what an effect this job must be having on him!