Melvin

Melvin is a school janitor that went to school with Mr. Turner in their youth.

Character
Melvin is regarded as a genius by Mr. Turner, and when Melvin told him he was "too cool for school", Mr. Turner immediately dropped out. Shortly after Mr. Turner left, Melvin turned to an inanimate trash can and told it the same thing, and eventually he grew up to become a janitor, so its most likely that Mr. Turner's assertion of him as a "genius" was incorrect.

Description
He was red hair, thick red glasses, and wears a pink shirt with a red tie and pants as a child, and a janitor's outfit as an adult.

Background
Melvin is a bad influence on Mr. Turner, and is always telling him that he is too cool for school, causing Mr. Turner to drop out and never complete the fifth grade. Later on in life, Melvin is a janitor and tells Mr. Turner, who is trying to complete the 5th grade, that he is still too cool for school, causing Mr. Turner to drop out yet again and nearly flunk school until Mr. Crocker gives him the opportunity to pass every grade from fifth to high school graduation by completing a test.