I am a coward Ode to Joe

I am a coward,
At school I'm a nerd,
I'm known at the dorky one,
For that's what I've herd,
Sure I'm afraid,
But isn't everyone at times,
Being scared of the dark,
Or jumping at bell chimes,
I am a coward,
At school I'm a nerd,
At play I sit all alone,
Because I am Joe.