i think a outside dog is easyer to train aswell my jrt and whippet were being a right pain when they were inside now there kenneld as said they are much more trainable , they are kenneld but my bulldog bitch just runs free out the back and sleeps in the concrete shed with the door open even i cant jump up on the fence tryd it once and if i hadnt heard her get up id ov gotn a sore one as she doesnt wait to see who or what it is she just goes crazy next doors cat and her jump up the fence at each other half the day aswell her thinking that one time she's going to catch .