It's hot out, and there's only so much you can do about it to stay comfortable outside. When the heat index is above 90 degrees, I think it's absolutely acceptable to be seen in public wearing shorts and a tank top, even if you're not at the lake.
Some people will take extreme measures to let their pits breathe a little bit, and that means cutting the sleeves of their own t-shirts. It's a bold move to mutilate your garments in such a manner, but desperate times call for desperate measures. One local man is taking things a little too far, however. From Fox 25: