The Malaysian Anti-Corruption Commission was recently reported to have kept a witness under questioning till past 3 am!!! And that witness ended up being thrown/pushed/made to jump out of their 14th floor office.
So here's my packing list if the MACC ever calls me up to be a witness:-
5. My toothbrush
4. Food (to help me last thru the long hours)
3. A sleeping bag!
2. Pyjamas
1. A parachute!