So there is this guy at work who always gets on my case about holding the door elevator open button as opposed to holding my arm in front of the door sensor to hold it open.
By holding my arm in front of the door sensor, I am doing two things:
- Holding the door open 2. Signaling to respective members of my community that I am holding the door open.
It is actually much less efficient to use the door open button, as I would have to additionally signal members of the community that I am holding the door open for them
TRWTF is that he uses even more energy by criticizing my methods for holding elevator doors.