Card Carrying Chump. Or Not...

As it has been another lovely day we thought we'd cycle along the river to Ham House for a cuppa & a piece of cake.
As we went through Richmond we passed this gent playing some delicate tunes in the shade under the bridge. I've blipped a lot of guitar players recently, but one more won't hurt, will it?

Upon arrival at Ham House I checked my wallet to discover I'd left our National Trust membership cards at home...