A 39-year-old man has been charged after allegedly throwing faeces on staff at a Mandurah employment agency.

The accused became involved in a heated argument with an employee at the Bridging the Gap branch on Mandurah Terrace about 9.30am Thursday.

He left the premises but returend a short time later with a garbage bag containing what police allege was dog faeces.

He allegedly emptied the contents of the bag on at least four staff members.

The man has been charged with four counts of endangering the life, health or safety of a person and one count of criminal damage.

He was refused bail and is due to appear in the Mandurah Magistrate’s Court today.