Even celebrity pitchmen wear out their welcome, typically vanishing from their longtime brand associations without so much as a tip of the hat. But Dos Equis decided to send off its "Stay Thirsty" guy — aka the most interesting man in the world — with a one-way ticket in this :60 farewell pageant. According to USA Today, the actor, Jonathan Goldsmith, is working on a memoir, Before I Was Interesting. And Ad Age says Dos Equis will debut a new spokesperson this fall.