It's really important to remember what an opinion is worth. All of us care what someone thinks, but those people should be the people closest to us, not random strangers. If you care what everyone thinks, you're going to drive yourselve bonkers, because you can't please everyone (and you shouldn't try).

This guy's opinion was so off-the-wall, that I would expect a mental health disorder or mental handicap. So the bigger question is, why are you letting the opinion of someone so obviously impaired (mentally, socially, intellectually - something's going wrong here) influence you.

If a two year old, or a mentally handicapped or mentally ill adult called you a "poopy face" would you be as upset? Because that's really what happened here. Someone with mental, emotional, social and/or maturity problems spoke nonsense to you. There was nothing in the comment that was worthy of respect.

When you respect yourself and your opinion, the opinion of strangers is irrelevant (especially someone this odd). Why do you respect the opinion of someone so obviously impaired?