Normally I say turn off the Television, but I found a tv show that is interesting. It's called Fit to Fat to Fit. It shows trainers gaining TONS of weight so that they can then lose it with their clients. The part that I found interesting is the mental meltdown that the trainers have once they gain their weight (we are talking 40-80 lbs). They are irritable. They cry. They break up with their significant others because they argue more. They doubt their worth. This happens in every episode. You just see them crashing and burning, crying, doubting, wanting to smash things, but in some cases wanting to just give up.
You think it would be fun to eat whatever you want, but you see this is not all its cracked up to be. 
So if you find yourself depressed, irritable, slugish, it's time to get on the treadmill. It's time to lose start eating better, and exercising more. 
Check out the show at http://www.aetv.com/shows/fit-to-fat-to-fit
McDonald's Shamrock Shake has 93 Grams of Sugar 
 The Shamrock shae kis back at McDonald's. This lovely shake packs 93 grams of sugar. This would be 18.6 teaspoons of sugar (according to http://www.convertunits.com/). According to the American Heart Sociaety our maximum sugar intake is 9 teaspoons per day for men and 6 for women. So a Shamrock shake has almost TWICE the amount of sugar (for men) and THREE TIMES as much for Women. Then (don't forget) you are probably going to eat something else the rest of the day.