"laziness"

Hello /sci/,
Could you explain to me why people are willing to go out of their way "to be lazy".
Examples:
  Walking an extra 20 feet to the automatic door instead of pushing open the other door.
  Waiting an additional 5 minutes instead of going up a flight of stairs.
I'm sure you've observed others. Is it just a habit people get into? Has there ever been a study into this.

>>116
Who do you think you're trying to fool! It won't work on me, troll! I feel no sense of you or any of those things you've mentioned! I'll beat you can't even find your way thorough an dark place without an bright flashlight!