The market is prone to temporary fits of shared enthusiasm – for emerging-market debt, for Internet stocks, for residential mortgage-backed securities, for Greek government debt. Traders need not wait to see when or whether the profits materialize. IBGYBG, they say – I’ll be gone, you’ll be gone. There are numerous routes to bezzle and febezzle... traders borrowed money from the future. And then the future came, as it always does, turning the bezzle into a bummer.