(CBS) — An inmate who was accused in a disgusting attack on a Cook County Jail guard earlier this month is charged with doing it again.

Back on Aug. 2, detainee Vermon Patterson allegedly threw feces at one guard and punched another. Now, after a move to a different maximum security unit that is overseen by the jail’s emergency response team, he is accused of throwing feces at another guard in the Division 9 showering area.

Cara Smith at the sheriff’s office said there are copycats who have used plates, milk cartons and more in similar attacks. She said some inmates have even used their own hands as receptacles.

Patterson has been jailed since December, unable to make bond while awaiting trial on a charge of home invasion with a firearm.

A judge set additional bond of $100,000 after the Aug. 2 attack and $50,000 additional on the latest charge.

In each of the feces attacks, Patterson has been charged with aggravated battery involving a peace officer.

Smith said that if Patterson is convicted on any of the three charges, he will lose all pretrial credit for time served, in addition to any other penalty that may be imposed.