Can a Geass be removed?

[danny-roboguy.livejournal.com]

We all know that a Geass effect can be cancelled, but can a Geass itself be removed or negated without the possesor being killed or a transfer of the Code?

So far the only solution I've came up with is if Lelouch commanded another Geass user to never use his/her geass ever again. What do you guys think?

Comments

[jjblue1.livejournal.com]

Yep, I think brain damage would work... Maybe also amnesia but I'm not sure... it might depend from the Geass... (and amnesia might involve brain damage so we would be back to square one...)