George H.W. Bush tweets recovery photo

A week and a half after being released from the hospital, former president George H.W. Bush on Thursday thanked his well-wishers and posted a photo of himself giving a thumbs-up on Twitter.

"Who knew jumping out of planes was safer than getting out of bed?" he quipped.

Bush, 91, broke a bone in his neck earlier this month when he fell at his home in Kennebunkport, Maine. He spent four days in the hospital and was in "great spirits," doctors said.

Bush didn't require surgery after the fall, though he'll be in several different neck braces and will require physical therapy as he recovers.