He teaches the boys at South Park Elementary with the help of his puppet, Mr. Hat. Mr. Garrison was in a talent show with Kathie Lee Gifford and grew up bitter that she beat him...she had two puppets. Recently, he was put in a mental hospital after attempting to kill Kathie Lee Gifford.
Mr. Garrison is not gay (although he says Mr. Hat can be)...he just acts that way to get chicks.
Make Mr. Garrison happy and buy this tie.