Dear Sandra,
This is a long shot, but on reading your post about your new and very scared
fuzzy, one possibility immediately struck me; can he see?  I've seen kittens
display this sort of behaviour and it turned out they were almost blind.This
is not too bad in a "home" environment, but when taken to somewhere new it
must be horrifying.Hence the stiff legs etc.,literally petrified of moving
in case there's danger.
 
You could try simple tests yourself; waving chasey things just in front of
him and seeing if he takes any notice.Don't forget they have a good sense of
smell though,so that will compensate for a lack of sight.  I hope this isn't
what's wrong,and he's just had some scary experience which will wear off
with lots of love and cuddles.
 
Cheers,
K.
[Posted in FML issue 2062]