Here's what's most likely the last talking baby ad you'll see for online brokerage E-Trade. The ad features the financially savvy tot meeting a new sidekick (of course, it's 2014, so it's a cat) and quitting in frustration.

The brand also posted an "I Quit" resignation letter on Facebook, written by the baby, in which he details his "Category 5 tantrum" and his plans after making all that money.

Grey introduced the talking baby back in 2008, at which point it was a huge hit. But the agency resigned the account last year, after the brokerage brought on board new CMO Liza Landsman. It tapped Ogilvy New York as its agency after a very short review, and the agency stepped in to deliver this final message from the little one. The brand also sat out the Super Bowl this year, for the first time since 2008.