suggest you have him collar a leash-trained by the time the cat arrives, or he will choke himself with excitement. Bassets do have a short attention span, but short, to the point training sessions backed up by consistent approaches between times, do work eventually. No more than 3 repeats of each lesson at a time and you will get there a lot faster than letting him do as he wills now, and then try to train him later. As Den has already pointed out, it is a lot easier to teach them the right thing, than to unteach them the wrong thing. It is amazing how tenacious their memories can be for doing the wrong thing ...