That's pretty funny. Just yesterday I was looking at the AFS Intercultural Programs online:
http://www.afs.org/afs_or/home re a chinese high school student. Then I decided that my house isn't laid out in a way that I can put in an extra bed with any privacy, so it'll have to wait a bit. But it certainly is an idea. Note that the AFS hosts are NOT paid, though the kids are covered for healthcare etc.