Eminem had his quarantine violated in the scariest way possible.

At 4 AM on April 6, 26-year-old Matthew David Hughes got into Shady's gated community outside of Detroit and then used a paving stone to smash a kitchen window and enter Em's home.

The alarm didn't wake Em's security at first. But it did rise Marshall, who found Hughes in his living room.

Em screamed for his guards, and his voice worked better than the alarm because they came running and grabbed Hughes.

Hughes didn't attempt to take anything and seemed to just want to spend some time with the rapper.

He was arrested on charges of first-degree home invasion and malicious destruction of a building.  He is still in Macomb County jail on a 50K bond.