Fun fact- I know a little birdie who would normally NOT give up any juicy info, at all.  

Until one day he let it slip that not only is Laura Bush a smoker, she's a chain smoker, and at events she requires a room off to the side where she can smoke immediately prior to and after exiting offstage.

Also, you'll notice a SS agent following her with a can of high-powered air freshener, to mask the smell.