What are some common mistakes people make when trying to politely ask guests to leave, and how can you avoid them?

Why might trying to be relatable or humorous with a kidnapper actually help in such a scary situation?
If aliens think and act like humans, would they really use us for proxy wars and entertainment? What would that look like?
If aliens think and act like humans, would they really use us for proxy wars and entertainment? What would that look like?