We have been practising NILIF with our husky/mal cross for the last six months. Even after all this time, the cat is more likely to come when called than the dog.
I feel like it is damaging our relationship with the dog. He used to come to us for affection; now he doesn't because he knows we will ask him to do something first, and even if it's as simple as a 'touch' or 'watch me', he doesn't want to do it.
He is a well-mannered dog and rarely misbehaves, although he also is very stubborn and hates to do anything he's asked. The biggest improvement we've had in his behaviour is that before, if I asked him to sit, he would think about it for ten minutes first; now he sometimes only thinks about it for two minutes. (The exception is for a piece of a sausage, when he will sit almost instantly). I don't think this improvement is down to NILIF; it's because he's learnt that we will patiently wait until he sits and nothing else will happen until then.
Is it worth persisting with NILIF? I know the idea is that your dog still gets lots of affection, because you call him to you for it - but this doesn't work because he won't come when called. Have other people had this issue?