yes i agree they are very intelligent but my brother was going out with a woman a couple of years ago and she had a standard, she wouldnt let him have a lurcher because she didnt like the idea of catching rabbits so when he took the dog out for its walk he would take the lamp and run it on rabbits without her knowing ,it got the idea but was so bloody clumbsey and slow it was unbelievable. idont think it ever actually caught a bunny yet i did this with a pure bred collie and got on quite well so if its brain your after why not use a collie.