In the TV series Growing Pains, season 1, episode 6, there's the following conversation:

Mom: Mike, don't forget that your father and I are going out... with the Koosmans tonight and you have to baby-sit Ben and Carol.

Mike: Can't we get a sitter?

Father: On this short notice, not one without an axe.

Mike: So? Ben and Carol are quick on their feet.

What's the meaning of "not one without an axe" here? What does this have to do with an axe?

In the TV series Growing Pains, season 1, episode 6, there's the following conversation:

Mom: Mike, don't forget that your father and I are going out... with the Koosmans tonight and you have to baby-sit Ben and Carol.

Mike: Can't we get a sitter?

Father: On this short notice, not one without an axe.

Mike: So? Ben and Carol are quick on their feet.

What's the meaning of "not one without an axe" here? What does this have to do with an axe?

In the TV series of Growing Pain season 1 episode 6, there's conversation down below：

Mom: Mike, don't forget that your father and I are going out... with the Koosmans tonight and you have to baby-sit Ben and Carol.

Mike: Can't we get a sitter?

Father: On this short notice, not one without an axe.

Mike: So? Ben and Carol are quick on their feet.

What's the meaning of "not one without an axe" here? What does this to do with an axe?

In the TV series Growing Pains, season 1, episode 6, there's the following conversation:

Mom: Mike, don't forget that your father and I are going out... with the Koosmans tonight and you have to baby-sit Ben and Carol.

Mike: Can't we get a sitter?

Father: On this short notice, not one without an axe.

Mike: So? Ben and Carol are quick on their feet.

What's the meaning of "not one without an axe" here? What does this have to do with an axe?