I've dumped spent grains near my house several times - its awful. Each time i do it I say "never again", then what happens after a long brew day - on side of the house it goes. The smell lingers for what seems ages and people start to notice, and then things start to die.
Rats, and such love spent grains; a while back I had a mouse problem because of it. I was actually going to start another thread about asking people what they actually do with spent grains. I know people say things like.."dog biscuits..bread...compost.."...however, in practice i don't think the average brewer has time/want to make bread from spent grains. And from my experience (and the post about the compost gone awry), I don't want spent grain near my house as compost - so what do you do with spent grains?