That was the vibe when the organizers of a convention of accessory dwelling unit (ADU) developers were thrown into a panic by a small band of civil protesters. Her tracking of industry activities found that anevents company called Informa Connect was hosting an ADU builders meeting that day at the San Diego Marriott Marquis. Some 20 community activists answered her invitation to gather on Harbor Drive outside the hotel. Most ADU builders sleep well at night because they honor the original “granny flat” conceptof modest units for relatives or visitors. Here’s a message for the ADU convention organizers, Mr. Spicer, Mr. Shkolnik, and their ilk: Community activists are never going to let up on you.