I did a stint contracting for Goldman Sachs a while back. I can relate. Don't think I can say anything more without a team descending on my house from a black helicopter, though.
I once worked at a tiny startup where we were trying to sell a dataset to GS. Before we could even send a sample, they sent over some boilerplate forms for us to sign. I remember two distinct stipulations - anything we sent them was immediately and forever their property, AND they had the right to drug test any of our employees. We ended up not signing so there was no deal. My boss said it was their way of getting rid of us.