Performance two

There is a jar, a large glass jar half full of water on the table.
There is a group of people around the table and then there is you. Group of people standing by the table. The person in charge takes the jar, goes to an open window and pours the water out the window in silence.
Glass jar is returned to the table and given to one of those people standing by the table, then this person shouts or screams in to the jar in one’s own way.
Performance is finished when everyone has passed on the jar,
till everyone has screamed or shouted in the jar. No words, just noise.