As for the Topic of the Day...
Hmm... Thinnest had to be at birth. I was always a "husky child". In high school, I had a bigger issue with the waist size of my uniform pants than I did with my actual weight. -And that's still basically the issue I have now. Losing weight means I can buy and wear smaller jeans.

As for the figures, hmm... I remember crossing the 200 mark sometime in high school - maybe even junior year. In college, I remember stepping on the scale and being around 235, which would have been my heaviest, but I would usually hover around 220-225.
In the fall of 2002, I made a concerted effort to lose some weight, and I got down to 210 - which is basically where I hover now. Strangely enough, I'm basically down to a 36-37 inch waist - which was the waist size I was my junior year in high school. At my heaviest - and roundest - I had a 42-inch waist.
*Of course, I wear a size 36 in jeans. For slacks and dress slacks, I wear a 38 usually depending on the cut.