Direct Intervention

Could be that the player DOES have DI and might be willing to use it.

If not interested in such shameless ploys to get something out of, well, basically nothing, just tell them that you won't ever give them anything so no need to ask again ("just talk to the hand...").

If after that they still persist, showing stalling shouldn't be a problem...

Timo wrote:

If I understand the question correctly it is about the length of the "as played window" and if it is possible to negotiate when someone play a card that you could DI.

And the answer is there is no fixed limit, and you are allowed to negotiate during that window.

Okay. I understand now.

It is not about reverting a card played that could be counter by DI so none the DI and the card were lost.
Once a player announces he is playing a card, there is no step back.
It is about extortion for future retributions.
Well... I didn't see that coming.