door

He's here for a visit,
My door has no lock.
A chair under the knob,
Makes everyone knock.

My sister comes to the door,
She'd like to come in please,
"Not right now! I'm busy"
But she begs and pleads.

Of course, he must take up her cause,
He slams into the door.
Whoops! There goes the knob-
My door now locks no more.

We all know it's not HIS fault,
I shouldn't have put in the chair!
And yet we must remember who
I'm REALLY trying to keep out of here...

So now I've learned my lesson,
Should have learned it years ago,
There's no such thing as a safe place,
There's nowhere I can go.