yes, some MOs r like that, cos GPs tend to give some 1 or 2 days
more. then hospital doctors tend to give a couple of weeks
more.
famous one known to me is in bedok camp 1 gds MO, 3mths cut until
1mth. this personnel from 1 gds insist on going to 3gds MO room to
endorse. 3gds MO inform 1gds MO just next door. 1gds MO just say,
"1month still not ok, then come back to me to extend." then this
guy saw 3gds MO but his MC in the end is still 11gds MO signature
at the bottom.
as long as MC ATT C for 28days or more need to go thru medical
board to endorse. MC ATT B/Excuse for 84days or more oso thru
medical board.