If the O 19 was still floating after the COD left, then sure she was just grounded. But that wasnt the case. The COD fired two fish into her and she settled by the stern.
THAT BOAT DONT FLOAT!
Now, as for it is impossible to sink something that rests on the bottom:
If you ground your boat in the Bay of Fundy during low tide, when the tide comes back in, it is still possible for you to sail off because your boat can float. However, if at low tide, I come along and blow your stern off your boat cant float and when the tide comes in, water covers the boat. IE: I sunk it! :rotfl: :rotfl: :rotfl: :rotfl: