As the housemates waited to return to the main house after Corin's task, Mario was talking about his belief in aliens after the subject of scary movies arose, with Mario saying he found the movie The Fourth Kind particularly scary.
He explained how as a child, he had many "bizarre dreams", including the feeling of "being held down", and that he "woke up with two circular red burns on my thumbs", making it "feel like I had been somewhere". He said that because of this, he has "always believed in extraterrestrial life".
The conversation went down other tangents afterwards, including Nathan saying that he believed the 1969 moon landing was faked, and Mario adding he believes parallel universes exist, and that people experience deja vu because of them. He also remarked how it is "ironic that Stephen Hawking, the smartest man in the world, has a mind that is contained in a body that doesn't work".
After a brief discussion about Charles Darwin, housemates were allowed back into the main house.