Rock Bottom Brewery (1 West Grand Ave.) is celebrating Phish's tour-opening shows in Chicago this weekend with a fundraiser for The Mockingbird Foundation. On Thursday, July 13th, they are tapping a keg of an ale that they brewed for the weekend, called "Sample." It is being sold in jars, which will be available for purchase. For every "Sample" in a jar consumed over the weekend, Rock Bottom will donate fifty cents to Mockingbird, but they'll also donate $1 to Mockingbird for every jar sold. There will be music at the tapping party, from 6-8 p.m., specifically, Jon Sabal and Mark Hague from Helping Phriendly Orchestra (and other bands, inc. Hack and Wheeze and Mr. Blotto). Please support this fundraiser if you can. For more information, see the June 22 announcement.