I know a lab coat isn't the most common piece of clothing to worry about, but as a chemistry grad student, its something I wear as needed. For the past year or so, my hips had gotten so big that I couldn't get the two sides to reach near the bottom few buttons, so I just buttoned the top. It worked fine, but I always felt so embarrassed by it, and just prayed that no one would come into the lab when I was wearing it.
Well, I just had to use it again, and I realized that that lowest part actually fits over my hips again! I wasn't even thinking about it until I slipped it on. This summer there was inches between the two sides of the fabric, its amazing how something can change without you even thinking about it