And I'm not really sure why.

Bush was wearing his bike helmet and a mouth guard when the mishap occurred. Duffy said he didn't know exactly how the accident happened.

"It's been raining a lot and the topsoil is loose," the spokesman said. "You know this president. He likes to go all out. Suffice it to say he wasn't whistling show tunes."

--Darnews.com (emphasis added)