I'm talking more of the ones along the lines in which the person has no background or a very limited background in X art. They go for the required time, and walk out with 'credentials' to teach.
Ah... well, that makes sense then
Perhaps camp was the wrong word. For example...at the end of this month, I'm attending the Arnis Summer camp that my group hosts. Its basically a 3 day seminar. What it is not...its not something that you can go to for those 3 days, and walk out of with a Black Belt. Sure, people do test for rank, but again, its not something where people are going to leave with a piece of paper stating that they're qualified to teach after those 3 days.
That sounds like the instructor's course for the restraint program I have to attend every several years... the instructor doesn't like me, because I understand the locks better than she does. But I will say that I hadn't worked on two-person holds much, so that was kind of useful. The student course is 1 day, every 3 years; the instructor's course is, I think, 3 days. Now, granted, it's a limited set of applications, and over half the class is on talking down students who are out of control... but still...