“If they relieve themselves, do they wash their hands? The public has a right to know.” — City Councilwoman Karen Koslowitz.

Mayor de Blasio agrees and has OK’d a bill that will require street vendors to display letter grades on their carts. Popular move from the troubled Mayor. For once, everyone seems to be on board. Even Gov. Cuomo, who refused to come to the aid of the small percentage who wheel out the “roach coach” every day. Figure about nine more months to get the extra tasty $2 dirty dog.

We’ll hang an “A” on our cart for the month of May. Heading to Citi Field this evening for a couple of squeaky clean $6 footlongs and watch Jacob deGrom finish out the month. Mets ace has stepped up his last two starts, allowing a single run in 15-plus innings. Chills the Brewers bats. 10 units on the Mets.

Red Sox ace Chris Sale was roughed up in his return to Chicago, but Jose Quintana was worse. Sawx cleared the wall five times and out-slugged the Chisox 13-7. Home dog loss sliced our savings to 2,318 sabretts.