Unfoolable

This poem is a Quatern. A Quatern consists of four stanzas of four lines each, with each line eight syllables long. There is no set rhyme scheme but it has a refrain which is used as the first line of the first stanza, the second line of the second of the second stanza, and so forth.

Nobody ever can fool me.
I know today is April first.
But don't get any ideas.
I will expect to see the worst.

Don't pat me on the back like that.
Nobody ever can fool me.
Now please remove that scotch-taped sign.
Let me guess. . .It says, "kick me."

No thanks, I don't want any gum.
I bet it's really a mouse trap.
Nobody ever can fool me.
So find another hand to snap.

Who put an ice pack on my chair?
Don't laugh. There is no cause for glee.
I knew it was there. I was hot
Nobody ever can fool me.