LOL...don't think he said he was being lazy...he said he's not being lazy, but rather, is afraid of causing stress or fear that would prevent feeding.
As to that...the room doesn't have to be totally dark to feed your snake. Really, any time of day is fine, and even in a dim evening-time room, you should have enough ambient light to see by. Once you observe a good kill, then you can slowly step away and let the snake be to finish its meal without being disturbed.