Flooding and anchor drag

Yesterday March 2nd we had the most rain during the night and into the morning.  One of the first things I,saw as I was opening the companionway during a lull in the rain was our closest neighbor waving frantically as we had dragged anchor during the night and were quite clost to his boat.  We hauled up the anchor and moved out somewhat and dropped it again.  We were there quite a while drying things out as the rain finally seemed to have stopped.  There was quite a breeze too.  At one point we went to shore as Walter wanted to see about the cost of a cellular data plan as part of deciding between Tijax Marina or Monkey Bay Marina.  We dinghyed to Bruno's and quickly checked email.,  then some guy yelled who ever has the red dinghy immune saw come from the big black ketch...you better get out to your boat as you've dragged anchor and your against someone else's boat.  We went out and untangled the mess.. It was the boat of a nice British couple who we've talked too several times.  They have 2 boats here now and have been coming to the Rio for a very long time.  Once free we motored over to Monkey Bay and anchored in the end out of the wind.. I guess the decision was made by default of the anchor drag?  Later we went to town and Walter got his Cellular Data plan and we bought some groceries then returned before dark as it's now about 3/4 of a mile to to town rather than 150 feet when anchored there.

  

    Asperida anchored just off Brunoes dinghy dock.

   This is from through the pothole of the British couple's boat we dragged into.. 

   The breeze must not have started blowing yet.?