We’ve heard all the jokes before: The sidewalks are so clogged with strollers that they’ve become impassible. Bars are about as hip as a windbreaker, are perpetually overrun by the under-5 contingent, and you’ll be shushed if you curse in public. There are no restaurants other than high-chair strewn pizza parlors, making it ludicrous for North Brooklynites to bother leaving their adult environs and subject themselves to the mercurial whims of the F train. Wary travelers take note – there’s a lot more to Park Slope than Gerber Organic.