I thought I was smart when I decided to hire someone to replace our elevated and large deck. Enjoy the summer rather than spend it figuring out while things aren't lining up. But I tried to save the demo cost by doing it myself. What could do wrong? Well 99% of the demo went great but there were some beams they were going to scabbard the new deck onto that were sticking out of the house. I was removing some of the decking nails on those beams while on a ladder (always a weird angle) when the crow bar slipped and the opposite end hit me just above the hairline. Blood was pouring from my head and I couldn't get it to stop. I was going to need stitches but a doctor friend came to my rescue and glued it shut. At the time, I was guessing the ER visit was going to be $2k which was about the same as the demo cost. My wife still reminds me of this every 6 months or so...