San Antonio’s sole Flying Saucer Draught Emporium location will host its ninth annual all-you-can-eat crawfish boil this Saturday. The event will kick off at 1 p.m. with craft brews, $5 mystery cans, food specials, music from a DJ and raffle prizes. Each pound of mudbugs will run $10, or guests can snag five pounds for $45, while supplies last.