Are you hungover? Need some greasy food and some hair of the dog? Want to do it all in the name of a good cause? Stop by the Passenger on 7th Street in Mount Vernon Square, between 2 p.m. and midnight (that’s right, you can brunch until midnight). The bar is serving up their great brunch food as well as cocktails inspired by Japan and cherry blossoms. Ten percent of all sales from the brunch, along with 2 dollars from every Japanese inspired cocktail, and all the money from sales of the “Sushi Cocktail” will benefit the Red Cross.