I say we let the poor Martian boy be and get started on making seperate bathrooms for him to go to with out being judged.
Lot of stories like this are from the parents like the child prodigy painter who turns out to be the parent.
This is a well know psychological issue that often is exhibited via child abuse, called Munchhausen by proxy. The parent uses the child as a way to gain attention for themselves. Some times it includes life threatening abuse of the child to make them ill.
instead of laugh about this boy and what he said, people should start to care about things like you write here, lets hope that nothing is happening here and everythings is like a "joke"...
btw, is a really old video, from 2008, he must be living now on pluton... xD