On the other hand, it's so easy to be fat, just sit on a couch and eat chips.  I'll have to disagree with you, here. A family bag of Doritos has around 2500 calories. Assuming no calories spent whatsoever (which is impossible, the body burns at least 1500 calories just to keep itself warm), it would take 30 of those bags to gain measly 10kg (22 pounds). Assuming one bag every three hours, it requires 90 hours of dedication just to become 10kg fatter! I'm willing to bet that 99% of this sub is unable to put on 90 hours of effort into their own physique within a month.