After being Discharged
Hypothetically, assuming I have been discharged, is there anyway or reason that the Trustee or anyone else can take the discharge away ?
Also, how long should I keep the discharge document ? And what if I loose the doc, where can I get another copy ?
Thank-you

Really, the only way your discharge can be revoked is if it was based on fraudulent information.
As for how long you should keep the discharge, you should keep it (along with all your other bankruptcy documents) indefinetly. This is an important document and may be useful later in life (i.e. a creditor pops up arguing you still owe them money). As for where you can get another one, your trustee will keep it for 4 years from the date you were discharged, but past that you can sometimes find a copy at your local court house.