Is there life out there? Almost undoubtedly.
Are they dropping by on vacation? Very unlikely.
If you were an advanced society capable of interstellar travel and you came upon a planet full of resources and populated by an, at least somewhat higher and intelligent life form, would you go to a remote area and pick up one of them to probe or would you go to a high profile area and try to communicate directly?
Why would you hide?
If you are in such an advanced spaceship would you run from some primitive fire belching low flying contraption?
The answer is not likely, you certainly would have nothing to fear.
Will we someday be contacted by alien life, probably. But in most serious scenarios aliens will not just fly by and wink at a few isolated people, or cows. And it isn’t likely they would pass up our resources, although by the time they come we will probably have expended them.
And finally if you did pick up one of these higher life forms to probe would you really choose the anus to go in?
As much as I would like to think we have visitors and that they come if not in peace at least not with great malice it doesn’t seem very likely.
But to the original question its a crap shoot. Some of us would have no problem with the idea of alien visitors. Others would have their very concepts of man and the universe blown away and they couldn't handle that.