Classic Poem

You always asked me to attend
Your birthday feasts when not your friend;
Then why this change — so sudden too?
For years you tried and proved me true,
Yet now at last you leave me out —
I know the cause beyond a doubt;

No Spanish plate in compliment,
No dainty robe or cloak I sent,
Your " generous" dinner to requite:
'Tis gifts not friends that you invite.
Now you will say, " That wretched slave
Forgot my note; I'll beat the knave."