Bay seniors have worked hard to maintain a semblance of dignity as age ambushes us. Why not just give up the fight for a few hours and embarrass yourself by joining the corps of fools marching through town on April Fool’s Day? Yes, it is the 34th Annual St. Stupid’s Day Parade this Sunday starting at noon at the Transamerica Pyramid and ambling into North Beach. Goofy costumes encouraged. Of course it’s free, you blockhead.