Some of the guys I work with call my shakes "magic potions" and have the same attitude as you point out. Proper 'roid monster me!
I don't have this problem, i have a work colleague who is fascinated and complimentary about the supplements i take (Protein powder, multi-vit, fish oil, instant oats) and often pretends to tense her arms and ask how my training is going etc.
FYI, she's marrying someone this year before you say "tap that".