Now listen to my long story,thanks...
I enlisted in Dec 98,I got OOC from BMT due to stress fracture of
my shin.So I got posted to OETI as an weapon technician. After
passing out,I was posted to a stay out reservist arty unit.Life was
good. 
By the way,during this time,you needed to attend 2 courses at OETI
to get your 3SG rank.The "25" course to get your CPL rank,the "45"
course to get your 3SG rank-and this was usually held a few months
before your ORD.
So I was in arty for around 11 months before I went for Enhanced
BMT recourse(together with recruits) in Apr 2000.Well I didnt clear
this BMT again because my old injury flared up.YES,I didnt clear
BMT 2 times!So I got a new posting to a siong SIR unit.This was in
mid June 2000.Once I got to SIR,I hung around for a few days then I
started clearing leave liao.Coz in July,I would be disrupted to
study in NUS.
So 4 years ogling at NUS Arts gals passed by very fast...Soon it
was time to re-enlist in June 2004 with 11 months liability left. I
was back to my SIR unit. At SIR,I was surplus to requirements coz
there were already 3 guys there.So I did all kinds of sai kang
lor...
Now the promotion system for weapon technicians has changed
liao.You just need to attend 1 course to become 3SG.Remember I was
from the old system.So I requested to attend the course again.The
manpower side dilly dally,I also not very persistent la.Then I got
got another BMT recourse posting! This course was scheduled for Jan
2005.
Once I heard of the BMT posting,I told myself no way am I going for
that...Past few months,I had been having skin rashes so I decided
to see a specialist at the Skin Centre.I got 1 month excuse from
there and I showed the letter to my sibei guai lan camp MO.This was
at the end of Nov 2005.
The medical board which downgraded me was on the Fri before the Dec
OETI course was supposed to start.To make clearer...let me check
the calender of 2004 again.
I got my medical board on 10 Dec 2004.The OETI course was scheduled
to start on 13 Dec 2004. On 10 Dec afternoon,I was on a day off
when a manpower clerk called me to say I had been downgraded in the
morning,so the BMT recourse was off and I must go to OETI on Mon.I
was surprised,but what a nice surprise. 
So I went for the course lor...then all the stuff which I mentioned
in the opening post happened.