Boy aged 4: dad, I’ve decided to get married
Dad: wonderful, do you have a girl in mind?
Boy: yes, grandma! She said she loves me, I love her too.. and she’s the best cook and & storyteller in the whole world!
Dad: that’s nice, but we have a small problem there!
Boy: what problem?
Dad: she happens to be my mother. How can you marry my mother!?
Boy: why not?! You married mine!!