[j-g-faustus]

The lesson is presumably that a bank should spread its bets. Here's the Central Bank of Cyprus in December 2012:

  When one invests over 100% of one’s capital in a single   
  financial instrument – even if that instrument is considered 
  low risk – it is indicative of poor risk  management. 
  [..]When bankers do the same with investors’ money – 
  because their bonuses are linked to short-term income 
  while the losses are underwritten by the taxpayer – the 
  same behaviour is more than just poor risk management – it 
  is ‘casino banking’. [1]

So it looks more like Lehman Brothers.

[1] http://www.centralbank.gov.cy/nqcontent.cfm?a_id=12472&l...