The Invisible Man

The girl who felt my stare and raised her eyes
Saw I was only an old man, and looked away,
As people do when they see something not quite nice
Or a row of houses so dreary they’d spoil your day.
Children don’t see me at all: they look right through me
My sons reach out a filial helping hand
(To me, who am shaking now with lust and fury).
These facts I know but find difficult to understand.