Keep the lumbago thwarted

Dear Captain,

You're a total trip. Did you know that?

Signed,
ASRLIO

P.S. You no longer rock my world.

P.P.S. I took the sand from your beaches and they line my hour glasses. Anyway, running out of time.

P.P.P.S. My sunglasses are half full but I'm no optimist. The time is one a trick pony minus one.