There is a lot more to haymaking than “making hay while the sun shines,” though doing so is a necessary start. Sadly, each year horse barns and farmers’ storage barns burn down, and horses become sick from respiratory disease and colic, as well as myriad other diseases such as Pituitary Pars Intermedia Dysfunction (PPID or Cushings disease). Many of these situations are avoidable so here are, in my opinion, the seven deadly sins of horse hay-making, in no particular order.