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.
More top news
Tuesday's weather for the west of the region
Tuesday's weather for the east of the region
The government is consulting on proposals to introduce an hourly fast train in parts of the south east - not stopping at some stations