In SIngapore, you get caned for:
Some counts of molest
Serious Vandalism (i.e. using spray paint)
if you are a healthy male between the age of 18 and 55. The maximum number of strokes you get is 24, and this is a law implemented by the British colonial government that just has never been gotten rid of even after independance - God save the Queen.
I guess if you attempted any of the above on SIA aircraft you would get caned. Though this Jap passenger who recently molested two SQ
girls got off with a S$4500 (USD2800) fine.
Can't see how you would get away with Rape or Armed Robbery on an aircraft.
If Singapore Air continues dissing other airlines up north The Singapore High Commission in London shall dispatch men to give him a good spanking! =)