For example...someone points at the bulge:
"Is that a gun?"
No, it is a medical device.
or even "what is that?" if they see a bulge..
Oh, its a medical device...
People are normally polite enough to leave medical issues alone. If they're nosy, say its an embarrassing medical issue and end the convo.
You did great, but just wanted to give you some more options if anyone asks again.
