I was fishing with a mate down in the local river, the current was folwing pretty quickly, so the desicion made was to dump the sand anchor, this worked really well the boat stayed in place. the spot yielded no fish so we decided to move. so with the anchor rope tied to the rollock we set off. only got about three metres before our progress was haulted by an almighty jerk, thats right, id left the anchor out. DO'H. We were damn lucky, my boat is an old 6 foot fibreglass tender that is a little fragile at the best off times, i still wonder how the side was not ripped completely off.
the moral of the story is always check to see if the anchor is in and dont be a fool like me