I know others will chime in with the same thought: Monty is a BEAGLE!! Beagles and "off leash" do not go together, no matter how well your beag is trained. That beagle nose will go with whatever scent it detects and go and go and go! Your neighbor's dog wouldn't do that because it is not a BEAGLE. This has nothing to do with respect or being the leader -- don't beat yourself up -- just keep Monty on a leash or within a well-contained play area.