It probably is. I can't say for sure. The idea is, to (maybe with a whole bunch of other people) take out a huge massive loan from some bank - enough to actually buy so many of the bank's stocks that you then own the bank. Naturally, this would be virtually impossible, as banks have probably millions of stocks out there and they're only going to lend you so much. Still, I thought of this in History class today and thought it could be funny.
I mean, once you owned the bank you'd definitely be making enough profit that you could pay back the debt relatively quickly. And.... then you'd own a bank!