Ironic and Idiotic Advice and Action Juxtaposition

Teenage boys are often the worst about basic common sense and safety-- for example, they leave the burners on in the kitchen and go elsewhere in the house, often forgetting that they are cooking something-- so when I asked Ian to hold the ladder while I was cleaning out the front gutter (to avoid further flooding) and he said, "I'll just do it myself" I told him that climbing up on a long ladder is a "two-man job" and so we went outside and took turns cleaning out the gutter and holding the ladder and we tested out the clean gutter with the hose and everything seemed satisfactory-- a job well-done, without mishap-- so Ian went inside to take a nap and I got curious about the gutter above the back porch, and-- ignoring my own advice-- I carried the ladder to the backyard and up onto the deck, propped it against a corner high up on the house, climbed up, cleaned out the gutter, and then decided I could climb up a bit more and get on the roof and grab a few sticks, and that's when one end of the top of the ladder dislodged itself from the corner and started free-floating and I felt like the whole thing was going to topple and I was going to break my neck; I managed to grab the roof and right myself and climb down without injury, but I was scared shitless and angry with myself for not following my own advice.