David Walliams discovers his WW1 hero great-grandfather was locked in a mental asylum

David Walliams has said he was relieved to learn he didn't have any 'horrible' ancestors while filming Who Do You Think You Are? https://www.dailymail.co.uk/tvshowbiz/article-8832663/David-Walliams-glad-learn-none-ancestors-horrible-like-Jack-Whitehalls.html?ns_mchannel=rss&ns_campaign=1490&ito=1490