On April 26, 2015, a resident treatment worker intervention specialist (RTWIS) and two supervisors, members of the crisis team, were attempting to stop a resident from traveling from his/her assigned unit to a different unit. The intervention took place on the landing of the stairwell. The crisis team used a hold technique on the resident which resulted in the RTWIS falling on his left elbow and both knees. A cut on the left elbow led to cellulitis (infection of the skin). The RTWIS was hospitalized from for intravenous antibiotics.