A lecture about English
A linguistics professor was lecturing to his English class one day. "In English," he said, "A double negative forms a positive. In some languages, though, such as Russian, a double negative is still a negative. However, there is no language wherein a double positive can form a negative."

A voice from the back of the room piped up, "Yeah, right."

An ode to old age
There's quite an art to falling apart as the years go by,
And life doesn't begin at 40. That's a big fat lie.
My hair's getting thinner, my body is not;
The few teeth I have are beginning to rot.

I smell of Vick's-Vapo-Rub, not Chanel # 5;
My new pacemaker's all that keeps me alive.
When asked of my past, every detail I'll know,
But what was I doing 10 minutes ago?

Well, you get the idea, what more can I say?
I'm off to read the obituary, like I do every day;
If my names not there, I'll once again start -
Perfecting the art of falling apart