So I saw this meme today...
It reminded me of a few months ago a trip to Target with my husband.
We were looking for a new board/ card game and ended up striking up a conversation with a female next to us. As we were talking yoga got brought up, and I mentioned I am a teacher. My husband, so ready to support me suggested I show her a few poses right then and there. I looked at him, and he was completely serious. So I did downward dog in the middle of Target.
We chatted some more, yes I got lots of stares, we exchanged numbers, and I have yet to hear from this person. HAHA.
So yes you can yoga in a store.