Is he just that big of a pig?? He has access 24 horus a day to mineral blocks - so why does he like the gravel? By the way no I am not letting him eat it! But the first time it happened earlier this week, I was cleaning his hooves, turn around, and he'd eaten a bout a handful before I'd stopped him. I have to keep the lead so short now or he will for sure just stand there eating rocks!