How well do you know your WAMU reporters? It’s whichWMArtin week 1

Which WAMU reporter named Martin is this a picture of?

From the beginning, I’ve loved Matt Johnson’s WhichWMATA series. But when did I know it was a hit?

When WAMU transportation reporter Martin Di Caro began trolling us on Twitter.

#whichWMATA pic.twitter.com/I5KA7aYUw0

— Martin Di Caro (@MartinDiCaro) July 27, 2015

@MartinDiCaro c'mon man

— Grtr Grtr Washington (@ggwash) July 27, 2015

I’ve always found it funny. But according to Di Caro’s co-workers at WAMU, he doesn’t know when to end a joke. They documented his persistence, and it has me laughing just as much:

Thanks for the laughs, Martin! You’ll have to be our guest quizmaster one of these days.