add this one to the list:
dont chase kittens on roofs. they have four legs and claws, you only have two feet and possibly slippery shoes.
thankfully, my dad is mostly ok and suffered only a broken arm and smashed face after falling 8 feet from the roof while trying to “rescue” his kitties (the cats subsequently spent the entire night on the roof and loved it). the injuries could have been *much* worse but let this serve as a lesson to everyone else–dont do it!