It's a particularly sad reflection on our society - it's thought nine out of ten people with learning disabilities are bullied or harassed each year. But now a group of actors, who themselves have learning difficulties, are hoping to change that.
They've been staging a play for police and social workers to highlight the problems of hate crime. It's called Living without Fear and it's hoped it will give a voice to the victims and help them cope.
Andy Dickenson reports and speaks to Ch Sup Insp Wayne Jones of Sussex Police and Jane Jessop, founder of Blue Apple Theatre.