in the malay and islam beliefs, thursday nights are when the
spirits roam, so that could also be a point of influence to no
activities on thursday nights.
it is known as Malam Jumaat (you can check with your older malay
colleagues)
Ref my previous posts..... the whole hocus-pocus about evil
spirits roaming on Thursday nights is because of Malay parents
wanting to scare their kids into behaving on a holy night.
Otherwise, as far as the rest of the Muslim world in concerned,
Thursday night is a holy night. Because it's actually Friday (we
count days from the previous sunset to the next sunset)...
In fact, 'Malam Jumaat' = 'Friday Night', and Friday, as you
know, is a holy day for Muslims.
In other news, I finally got a couple of good sets of data for
my experiments! Woohoo!
*me does the Thriller* 
