I did suspect they may have been from Mars.
(
riverghost servicing your mum since,
Fri 16 Jan 2009, 17:09,
archived)
Hopefully
when they return to the home planet, they'll take the Daily Mail with them!
(
Sivvus trolley collision in the fruit aisle led to a jam,
Fri 16 Jan 2009, 17:12,
archived)