A cryptic itemized list, such as a mortgage's Good Faith Estimate (GFE), which falls short of describing the items in the list still fails my test.
This hope is not for me. Its for the misfortunate who run on impulse and have weak mathematical logic. Many people will nod their heads when you mention simple/compound interest or amortization. They will easily dig themselves into holes and take on the realization far too late in the game.
Another favorite which gets thrown in the air: 'Purchase this warranty.' Countless friends and family have worried that their purchase or lack of warranty was a mistake. Asking about said warranty usually results in: 'read the small text in the agreement.' Typically, walking away from the situation completely misinformed by a seller.
As I prepare to move out of my apartment, I received an itemized list (hidden among a contract and various other documentation) which in total amounted to $11,500 in charges for potential neglect in leaving the apartment. Simple things on the list: patch holes ($80/hole), steam clean carpet with receipt ($500/room), replace drip pan ($200), etc. Nothing warns you of the potential threat.