One time when I was benching I forgot to finish loading the bar so one side had a plate, a quarter, a 10, and 5, and the other side just had a plate. Not only that, but I forgot to put collars on. Not only that, but I didn't have a spotter. Needless to say that as soon as I unracked it, all hell broke lose. lol
There is nothing "smart" about a 3rd attempt deadlift.