I wouldnt loose him off the lead untill i am happy he will come back, i was just really wondering after yesterday fiasco , he was on the lead then but its only incase he does manage to slip his collar or anything
If you are worried about him slipping his collar, even though people think that they look silly why don't you get a harness until you feel that you can trust him more?
i seen a labrador retrive a old ladies yorkshire terrier once, was funny at the time,these things happen its just dog life i wunt even give it a second thought