Nate met him right after Nate begged for a really young substitute teacher and said Mr. Aiken looks "fresh out of college."
However, as the days passed by, Nate started making fun of Mr. Aiken, taking advantage of Aiken's lack of experience. Nate even drew him as a "Dorkosaurus Rex" and threw a paper airplane at Mr. Aiken while he was reading a note. The note said "Never turn your back on the students."
- P.S. 38 is the first school he has ever taught at as he is very clueless.