[pw0ncakes]

Modern ninjas do most of their work in no-harm kidnappings due to Japan's idiosyncratic (no reciprocity) and somewhat xenophobic custody laws. If your spouse is ethnic Japanese and flees to Japan with your child, and you have legal custody but live elsewhere, Japan won't surrender the child.

[lanaer]

That applies to other places in Asia and the middle east (go arabic ninja, I guess?)

[pw0ncakes]

I'm sure the lower-ranking Saudi princes could use something to do.