geeze, I think that's a bit rough. Ummm out of curiousity, what would they have done if she *hadn't* cleaned up after making playdough?

And what does your mum say about all this, does she think it's OK as well? Maybe you can both present a united front to your brother, but be very careful. What are his concerns that he feels the need to videotape her? As it may be better to address those concerns rather than attack the whole privacy issue.