While cats do not usually have the physical capability to climb over the barrier from inside the garden, they do have the physical ability to jump the barrier from on top of the fence. However, most cats will see that there is no exit from the garden and choose not to enter. Our customers report that neighbour’s cats tend to choose not to enter their gardens because they cannot see an escape. If you are leaving your garden unsupervised while going on holiday for instance, it is a good idea to leave an escape route for any cats that might enter (a wheelie bin against the fence is a good solution).