Just a thought, but I think a lot of people use Vimeo as a backup in case Youtube mutes the audio or takes down their videos entirely. As it's a site more geared towards video producers than Youtube is, they seem to be more lenient in what's allowed, and as the above poster says, it will also allow you to password protect your videos. So that might be something for you to consider. Or, you could put your videos up as unlisted on Youtube, so that only people with the direct link are able to view it and it's not searchable. I've done that with a few embarrassing videos I've made for class projects in school.