GeshmakMan
“My friend taught me a General Rule of Thumb….If you are to em to walk into a place wearing a Yarmulka, then you shouldn’t be there at all.”
This rule would only work one one who has not compromised on his morals. One who has a strong mussar and hashkafa background and hasnt already attended places he shouldn’t. Once one has broken that boundary it can no longer be used as a barometer for where one should or shouldn’t go. A better idea is to picture your Rav or Rebbe in front of you and ask yourself, “would he be proud of me that I attended this venue or would I be embarrassed if he knew or at least would prefer he not know…?”