yeah, illegal aliens......
seriously if an advanced species ever discovered us and studied how we behave they would either stay the stuff away or eradicate us.
Alot of people who have allegedly had contact reckon a couple of key messages that are often communicated are:-
1) as far as the human race goes, we are not unlike a young adolescent that needs to learn what is right and wrong.
2) there is a rule which is mostly followed of non - intervention into the affairs of semi - advanced civilisations
3) most species are benevolent unless threatened themselves.
1) this is correct, but an adolescent that is not as smart as it thinks and with no adult to provide guidanc
2) who the stuff would know.
3) based on species on earth, generally correct, excepting for predator/prey interactions. The problem with humans is that generally they feel threatened by anything different to themselves. Also like the adolescent child, we pose a threat to others, and ourselves, by acting without consideration, or caring, of the consequences.