haymitch over sharing everything in SOTR and katniss hiding everything is funny until you realise haymitch is trying to remember ever detail of the people he loves while katniss wants them to stay hidden by keeping those precious to herself
in mockingjay they killed all the victors in front of the districts to highlight that no one is safe! it's not entirely focused on and a tad glossed over so i'd understand if you missed it :)