Don't be

It's an interesting story but not very uncommon

The man likely has issues and was looking for attention

My friend recently told me a similar story that happened to his father while teaching a class at church

Some creep interrupted the class wearing sunglasses, looking like a thug and security had him removed

They later told my friends father that the man is bi-polar and was off his meds

Several weeks later the same man returned and did the same thing

Think nothing of it

Just a creep