[The 4 M]

Hi I let all of mine have the full run of the house also and only use the pen for safety reasons when we are not there to keep an eye on the little ones, the pen should come with the mesh top, we did have problems with the first pen I bought it had a Velcro base that the clever little pups worked out how to get under and escape so I re bought the same type of pen but this has a zip base and have had not problems since. as for the crying I do little test runs leaving them and building the time up from 10 mins upwards I find this works really well in making them feel happy you will return also I hide little bits of dry food under toys and in the bed, silly it's the same food that's in a dish but they love the hunt and keeps them busy from thinking of me leaving