How much PDA is not okay?

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For those who don’t know PDA stands for public displays of affection.

My husband came home for the gym and was telling me about how he was in the sauna and a couple came in and just started passionately making out as if he wasn’t in there. We both thought it was hilarious. He wasn’t bothered at all, just not something you experience everyday.

So it had me thinking. In your opinion, what is too much to show in public? Anything beyond a hug? Or as long as people aren’t literally having sex, do you not care? Give a reasoning behind your answer!

Personally, not much bothers me unless there are noises being made or people aren’t clothed.