Despite his softness, weakness and oddness (specially with that nerdy-look), being bullied at school (specially by Homer Simpson) and beaten by Alfred Spencer... deep inside Waylon Smithers Jr. it's the most bravest and strongest child. He found the reasons for endure and defiance that awful life. The most strong reason is the vision of Mr. Burns' warm smile, the only person who give him happiness. So that's why Waylon have this hidden courage for face everything.
Inspired in this song: [link]
C. Montgomery Burns and Waylon Smithers Jr. (c) Matt Groening
Alfred Spencer (c)