Sorry to contradict you kilwhang, but the Changi Malcs was demolished a year or three back along with all the other domestic site buildings, barring the old block (152?) with the Changi murals. Google Earth shows the bare patches where they once stood.
I remember "laughing boy" the old Chinese counter hand at the food counter with the fag end permanently hanging out of his mouth. We got Miss Malcs pissed on closing down night in 1971 and discovered she knew all the words of songs like Old Penang, I Stood On the Steps... etc. Well she would of course, the Old Dear had been hearing them for years.
Our syndicate bought the middle eight of a block of ten Singapore Sweepstake tickets in there once and the 'zero' ticket of the block (that we had left out 'cos the zero never won
) won the sweep that month. So, someone at RAF Changi in 1970 won S$400,000 and no one ever coughed up to being the beneficiary. At the time a pint of Tiger cost $0.50c - 7p in the new fangled decimal money - so that win was worth was 100,000 gallons of Tiger. Or in more up-to-date terms, ten decent three-bed semi detached houses in SE England.