Missed Visit

Unlocked the door,
Put down my bag,
Picked up the slip,
Look at the name,
And sign again,
How can I miss,
The gas man,
Every time,
Do they wait,
For when you’re out,
When you leave,
Gone through the gate,
Just to knock,
And post the slip,
For you to call,
To tell you,
Wait in for me,
I’ll be there some time,
Between 9 and 3,
You wait in,
And “just pop out”,
When you get back,
You find the ticket,
“Sorry you were out”.