Worse than a pun, a math pun
For DH, all others are warned
An Indian chief had three wives. The first wife slept on cowhide, the second wife a deerhide and the third on hippopotamus hide. The first gave birth to a baby boy, the second to a baby girl and the third had twins - a boy and a girl. Looking at what... happened, the old chief declared, "The squaw on the hippopotamus is equal to the sum of the squaws on the other two hides!"
An Indian chief had three wives. The first wife slept on cowhide, the second wife a deerhide and the third on hippopotamus hide. The first gave birth to a baby boy, the second to a baby girl and the third had twins - a boy and a girl. Looking at what... happened, the old chief declared, "The squaw on the hippopotamus is equal to the sum of the squaws on the other two hides!"