When Apple (AAPL) fired former iOS boss Scott Forstall as part of an executive shakeup last month, he “got what he deserved.” So says former Apple executive Tony Fadell, who left Apple back in 2008 and eventually founded Nest, the company behind the popular learning thermostat. In an interview with BBC, Fadell said there is likely no love lost between Forstall and the company he leaves behind. And he’s certainly in a position to know — Fadell headed up Apple’s iPod division before departing and the two executives reportedly bumped heads often.