One morning we splashed a greenhead and he hit the water right at the curve of the J in my dekes, The dog jumped as soon as the duck hit the water, after several minutes of him swimming around and no duck we decided to take the boat out. Called the dog back, rowed out to the decoys and still couldn't see him. After about maybe 10 min. we found him holding on to the weeds under water, touched him with an oar and he floated to the top.
Another morning we had about six mallards come storming in and layed into them, one just dropped out of the sky right in to our blind. My hunting buddy reached out to catch him and broke his wrist when the duck hit him (to this day he has no idea why he did that).