Whether buying a dress or selecting a romantic partner, trying out the goods is essential before sealing the deal. But there was once a time when parents settled the marriage agreement and women didn’t have a chance to decide on their potential spouses. That’s the case in Washington Stage Guild’s production of Frederick Lonsdale’s On Approval, a comedy of manners about a widow who whisks her lover off to Scotland in order to investigate whether he’ll be an acceptable husband. Circumstances lead to them getting stranded with two friends and, predictably, things go south. The very polite manners the characters once displayed turn bad, partners get swapped, and marriage seems almost entirely out of the question, but hilarity still ensues. The play hasn’t been seen in D.C. for decades, so while the source material might be old, the story appears brand new. The play runs April 23 to May 17 at the Undercroft Theatre, 900 Massachusetts Ave. NW. $20–$50. (202) 582-0050. stageguild.org.