What kind of person goes to Earth?

ESA astronaut Raja Ramjet could not believe his luck.

The Martian ship landed just as he reached the end of his lunar outpost provisions. He had been stranded on the moon for six years. A victim of the global economic crash and a bankrupt space agency.

‘You are now a guest of the Martian Spacefleet’, beamed his rescuers, ‘and we will safely return you home to Earth.’

Raja frowned before he replied.
‘No thanks’, he said.

‘Huh, what do you mean no Earthling?’, asked his now surprised rescuers.

‘Earth’s a kip, nobody in their right mind would go there.’