Was going to get a haircut at the Navy Exchange today while on a break from work (was wearing my flight suit), and I spotted somebody wearing a shirt down the hall with 2 blobs of a familiar yellow and pink color.
As I walk closer, I confirm it is indeed a Pinkie Pie and Fluttershy shirt, and proceed to have an, "oh my gosh, oh my gosh, oh my gosh," moment, considering I've never met a brony randomly IRL before, much less on a military base.
As he and his family walk past, I tell him, "Hold right there a second," as I proceed to make it look as if I'm judging his shirt disapprovingly.
I then tell him, "Nice shirt," his family chuckles at the remark, and we go our separate ways.
Moments later I realize that my comment may have seemed sarcastic, so I go back and find the guy again to tell him that he has a severe lack of Applejack on his shirt.