When I got Asta we had to put chain link around our patio & pool . We also had it fenced with wrought iron bars but I was worried he might squeeze through the bars and sustain a fall .
When I got Cosmo he could sueeze through anything not the chain link but through the bars on the entry gates . Asta never thought of it . Different dog different motivation . So we had to put up that green stuff temporarily and I had to walk the fence line looking for holes he could get through ..
As to the leash ..
I think it is a good idea to take the dogs out on a leash to go potty only - they seem to need to seperate doing their business from playing . It is fine to let them play but they need to know there is a time to potty and a time to play ..
I had to keep Cosmo on a leash a lot when he was very young - he was into everything . It was amazing how fast he could get into trouble and get things in his mouth ..
I know I posted this before but I repeat it , I did not use a regular leash - nothing heavy duty . I used a leash you would use for a toy dog like a tiny poodle . Very narrow very light - just something that gives you a bit of control and it would get the dog used to a leash .. It worked well for Cosmo - he used to drag it around in the house and he has never fought the leash . He does sit down and refuse to budge however ..
Oh yes - in regards to tail ,collar or harness the boys were playing in the backyard yesterday playing run like heck and Cosmo took a shortcut and lost control and he landed in the pool . What a suprise it was to him . I just grabbed him by his collar and I got him out .. All was fine .. I might have had to go in the pool if I had to grab him by the tail . ..
No worries he was fine - he intuitively started to swim .
Another first for Cosmo !