Not only humans, but animals, birds and fish have their personal boundaries.
I wonder why they have ships of such large size? That one that dinged the US destroyer was a quarter of a mile wide? Are they perhaps taking or leaving something?
I never thought about this "leave us alone" idea until recently, when it dawned on me that this isn't right!
I hope they want to be friendly to us and make contact, whoever lives in the generation that first experiences that will be very lucky.
I am lucky enough to have seen UFO's, but if you ask around, it is suprising many people have. I don't know if it is my imagination, but it seems like the sightings are becoming more frequent, or maybe it is just an acceptable topic now, not censored or shunned.