[what's the opposite of incentive...]

Yes, that does leave it rather vague, when speaking of Targaryens.

[Viserys. Jaime is not impressed.]

I remember the child, at least. The way I heard it, he met a most unfortunate end across the Narrow Sea some time ago. Why the gods seen fit to resurrect him... I suppose we can only speculate. Or say a prayer and hope the mistake is corrected. As that's not likely to happen--what do you intend to do about a truly mad Targaryen?