Do you believe in extraterrestrials visiting earth?

I think there probably is other life out there, and I suppose there's a remote possibility that they might be able to travel to Earth, but I also think that if they were intelligent to be able to travel here, they would be smart enough to observe us for a while before deciding whether or not to come and spend time among us. And if they observed us for a while, I'm pretty sure that they would run the other way, if they saw all the fighting and the drama that happens here.