It is allowed to try anything you can come up with, but as soon as you encounter anything that seems wrong you should contact us. Those who find bugs, will be rewarded, those who don't report them, and try to use them for their own advantage will again have their account deleted. This may again seem a little bit harsh, but a person who can read a manual of a hundred pages, and fill in an orderform full of cryptic orders is intelligent enough to see what should be possible and what not. Even if the specific order is meant to work that way, but it is not explicitely mentioned in the manual or FAQ, we would like to know because then we can upgrade either or both these documents.