At your local auto store

People are like oil filters,
after 5,000 miles or 6 months,
you should replace your lover.
Over time people build up,
harmful, abrasive, sludgy bits,
that will find their way into your heart.
If not replaced as instructed, those toxic pollutants may kill you.
So remember,
keep your organs and psyche clean.
That's my message to you...Guaranteed!