A question by Kevin about the origins of a "No Boogie-boarding" sign outside MacLaren's makes the gang reminisce about Hurricane Irene which hit New York in the summer of 2011 and which was the impetus to the incident that prompted the sign to be erected. Safety conscious Ted wanted to leave the city before the approaching hurricane. While Barney, Lily and Robin thought that Ted was overreacting, Marshall, who was between jobs and had just lost his medical insurance until his new job started in two weeks, was suffering from hypochondria and wanted to leave. But telephone calls from various parents, news of the strength of the hurricane as it got closer and closer to New York, and interpersonal relationships between the five at that time made them continually change their individual minds about whether to go or stay. Meanwhile, Barney is at a point of doing whatever he can to get out of wearing the ducky tie. He thinks he has a way to convince Marshall to let him get out of wearing the.