Second Test, Day 1South Africa: 269/7 (Rickelton 101, Bavuma 78, Verreynne 48*, A Fernando 2/67, Kumara 3/54)Ryan Rickelton’s maiden Test century offset the Proteas’ mission to rewrite the schoolboy howler manual yesterday in trying to let Sri Lanka off the hook.Thirty minutes of batting madness either side of the tea interval would have left both head coach Shukri Conrad and batting coach Ashwell Prince seething. The duo did their best to disguise their disgust when the cameras zoomed in on them during this wild period on the first day of the second Test at St George’s Park, but…