From time to time, I see very out of shape people in the gym. The only thought in my mind when I see them is, "Good on you, goddammit." However, I don't say that aloud because I don't want to put them on the spot. If anyone says anything negative to you for working out, screw them. There are far more people who would rather have you work out and be healthy than not. Please rack your weights though! Haha