We have no b/s, and ours never hang off stuff. For me personally (and don't shoot me down this is just my personal opinion), I don't feel the need for any of that and I do think it looks 'stereotypical'. Ours are well behaved and as mentioned before, they go out either beating/picking up, or like today one of them is dogging in for one of the shoots with the spaniels. I just don't get the whole 'it has to do this, because of it's prey drive blah blah blah' We teach the out from a young age and it is never a problem. With regards to them behaving differently in a fight, well of course every dog behaves differently in a fight, but responsable dog ownership means you are always alert. None of our bulldogs over the years have ever got in punch up. I do think treadmills have their uses, for example when a dog is recouperating after and injury. But it should be done in conjunction with your vet/specialist, and on a calibrated machine, not some piece of kit knocked up in someones shed. I am not a lover of weight pull or in actual fact the whole 'athletic days' thing. I have attended a few and found that they were indeed attended by a lot (not all), of the sterotype people, with the attitude to match. Very few had dogs that didn't pull on the lead (my biggest peeve). The last one I went to 3 women got into a complete slanging match (very classy), and some clever person tied up 3 entire males to a tree and wondered why they started a fight.