If a guy’s thong accidentally shows in public, how would you react?

What would you do if you see a male person in a public store when he is bending to get something and have accidentally thong slip and you see it what would you do approach him and say to adjust his pants cause his thong is showing or would you laugh and why would you laugh if maybe you yourself is wearing thongs and if it happens to you

If a guy’s thong accidentally shows in public, how would you react?
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