Jonathan Sis is the fictional president of the fictional Jewish Organization The Benjamins – Fixing the World $100 at a Time. The word “sis” in Hebrew refers to the swift, a bird of the genus Apus. Many of these birds nest in the Western Wall. Large flights of swifts reach Israel at the end of February where they feast on flies and mosquitoes, filling the air with their cry of "sis-sis," whence their Hebrew name. Their cry sounds like that of a person in pain.