Only about once a fortnight at Tengah in those days.
Perhaps it was the spiders?
Oh, don't forget the paint. The palest grey and green ever seen. In fact, on some aircraft, bordering on overall pale grey!! When one came out from a major, resprayed, it looked quite 'foreign'
BTW, my room in the Mess (#48) overlooked the 'scrapyard'. Quite a depressing sight.