I use earbuds -- Sennheiser CX 680i -- which have an inline three-button remote and mic for controlling the phone. It has all the same functions as the stock Apple earbuds that come with the phone. I use Siri mostly for texting. When wired headphones are used, Siri will read back what is said (without explicitly asking for "review") -- hence there is absolutely zero need to view the screen. However, when activating Siri using the middle button on the inline remote, the screen is activated in the very same way it would be activated if I press and hold the Home button. The Siri microphone button can then be accidentally tapped while the phone is tucked away in my pocket. This has happened far more often than not. I realize this may fall into the "beta" area, and it's a specific quirk that Apple may address. I'm just wondering if there's a creative workaround, or maybe some option I've totally overlooked to prevent accidentally "butt cancelling" Siri.