Mate give the dog at least a month off and then get back out. If you dont already, get to know your ground. Know where the rabbits will be feeding, know where they run to. Get between them and home before you light up. Look for one thats not realised your there if possible. Get as close as possible before you slip. And if it looks like its going to reach cover put the light on the bushes in front of it and wriggle, this should hopefully cause it to turn off and run along paralel to the cover, giving the dog a better chance. If he stops then just put the lead back on and walk back to the car,