No, NO. DON’T REPEAT IT! Thank HaShem you’re still sensitive to it. How many of us have ‘downgraded’, desensitized to the dirt, filth and sewage from the street. Keep it up. DO BECOME SICK OVER IT!! That’s just re-confirming that you’re still a ben/bas Melech! You haven’t lost your grandeur despite your surrounding! That is something to admire!!
What to say to this individual? “Es Past nisht”. It’s not becoming of an orthodox Jew to express himself in such a lowly manner.