The cuppa is drunk from a heat resistant, asbestos utensil, called a china. This can come in many forms, and usually bears some alien insignia on it like "I don't like teaching, but I like living on the edge". The china has a carrying implement on the side to increase the spillage area when the china is dropped from a height when the teacher is in a stress. It has also been designed with great precision to break on contact with the floor so that no student may copy the technology when trying to clean up a broken china.  

Teachers must ingest at least one cuppa every hour, otherwise they enter the stress zone, and start hurling pupils about.