Height of double meaning:

A Dad went to school to get son?s report card.

Busy Madam: Abhi nahi.

Dad: Mera boht mood tha abhi sab dekh leta.

Madam: Main sab dikha dongi per abhi nahi.

Dad: Tou phir kab aon mein?

Madam: Mere periods khatam hone ke baad.