Untimely Confessions

A woman prepared some vegetable soup for herself and her husband. When they were about to eat, the following conversation began.

HUSBAND: Where did you get the vegetables from?
WIFE: I got it from Mr. Sand's garden.
HUSBAND: What?! From that wizard?! How I'm I to know that the wizard didn't poison the vegetables?
WIFE: I have an idea.

She gave some to her dog. After some time, the dog went to play.

WIFE: See? The food isn't poisoned.
HUSBAND: OK. Let's eat then.

After eating, their maid came crying.

WIFE: What happened?
MAID: Bingo is dead!
HUSBAND: What? The food is poisoned!
HUSBAND: (Feeling sober and guilt filled upon realising he's going to die in a couple of minutes) I need to make a confession!
WIFE: What?
HUSBAND: When you aren't at home, I and your maid use to have sex in my room.
WIFE: (Feeling angry but immediately realising this is futile) I forgive you.
WIFE: I too have a confession to make. Promise to forgive as I have.
HUSBAND: OK
WIFE: The children aren't yours. They are the Gateman's.

Immediately after, the Gateman came in.

GATEMAN: Oga. The man who hit the dog with his car is outside. He says he wants to apologise for killing the dog.