That is a huge risk you were taking and I wouldn't suggest anyone do that. I used to work overseas for nearly a decade and so I was flying a lot, every month basically. While the white privilege worked for the most part outside of North America, I did occasionally get checked here and there, more often arriving back to Canada but also on the domestic leg of the flight.
Getting caught with AAS on the domestic flight may or may not be a problem (ancillaries shouldn't be a problem at all), but it is almost guaranteed to be an issue on international flights.
I flew to Bali with my wife once, I, being white got waived through at the security on arrival, but they decided to check my wife's bags (she's Thai). I almost shat my pants when they opened her bag and there was an anavar bottle in there when they started digging, thankfully it was empty, still have no fucken idea how it got in there but Bali got a very strict drug laws.