"Aliens are small, blue, with bulbous heads and big eyes and a yellow pompom on their heads," Nida countered with a smile. Of course he was working off of a children's story.

But the singing songs thing makes him smile and shake his head. Okay, candles and 'happy birthday' are two things he does remember, however faintly.

"Does it go something like 'happy birthday to you'? Because I'd be really interested if our worlds have that sort of cultural overlap. Oh, I know candles happen for us too. Just... don't know if I've had a cake."