Laughing in church is not taboo at the First Church of the Last Laugh, the folks behind the annual St Stupid's Day Parade in North Beach on Saturday, April Fool's Day.
I've yet to make it to this event, but it was posted on both Daily Candy and FunCheapSF - so it must be popular! And with some beautiful weather likely for the weekend, why not enjoy it by checking out the crazies as they parade through North Beach. A little laughter never hurt anyone. :)