COPIAPO, Chile (AP) ― It has been a bittersweet anniversary for Chile’s rescued miners, who were honored as heroes in their hometown only to come under attack by anti-government protesters who threw fruit and small stones at them, accusing them of being ungrateful, greedy sellouts.

Chilean President Sebastian Pinera and his ministers joined most of the 33 miners Friday at a Catholic Mass and then the inauguration of a regional museum exhibit recognizing their remarkable survival story.

But the events were marred by scuffles between riot police and students, teachers, environmentalists and other miners, all trying to make Pinera bow to their pressure on issues from reforming public education and increasing miners’ pay to stopping controversial dams and power plants.

Some of the activists threw oranges and apples at the miners, accusing them of getting too cozy with Pinera’s government and trying to cash in on their fame.

The treatment shocked rescued miner Omar Reygadas into silence. His son told The Associated Press in an interview that his father was deeply hurt to be accused of selling out to the government. Other activists shouted that the miners were trying to get rich with their $17 million lawsuit accusing Chile’s mine regulator of failing to enforce safety requirements.

“My father was saddened, deeply saddened. He doesn’t understand how people could act this way,” said his son, also named Omar Reygadas.