Uncle Sam is Needy 

Mind you ignore uncle

Sam, he's way dysfunctional

a drag, but always punctual 

dragging you off to war

so ...

don't ever be malleable

as he's ever as fallible 

as your body and soul are flammable. 

(...but enough of this cute rhyming

run like hell when you see him

or have a drink or go get dinner; 

what would uncle do with his time, then?)