In a story that's being emailed around the city, mostly with the subject line "Dude, did your dad start jogging?", cops want to find the short, brown-haired jogger who flashed a lady while running yesterday. Writes Levi Pulkkinen of the P-I:The woman told officers the man pulled up his white T-shirt and dropped his black running tights as he ran past her near the intersection of Wallingford Avenue North and North 54th Street. She also......