I learned to use good solid straps to secure loads when I was following my boss from the appliance store out to my house to deliver a scratch and dent fridge I had bought cheap(manufacturers would say take them out of service and use them for parts, I got all new appliance that way). He used some ratty old strap with tears that I questioned as he tightened it. Halfway there a wind gust caught it and snapped the strap and lifted the fridge up and out of the truck box(Ford F350 with a flatbed with walls) and dropped it on the road, Cart is was on snagged the bumper of the truck for a bit so all it did was slide down the road but I had to dodge it. he owed me a new fridge, and was screaming and hollering until I reminded him that I mentioned the strap was torn in half already... he could only blame himself for using poor equipment to fasten a load and it cost him $500 to buy me a new fridge just like the one I was getting for $200