Bowel movements
Conversations with your spouse can be varied and interesting throughout the time you spend together. When you spend so much time with another person, you can end up talking about anything from the current political situation, to who took the bins out last.

If we’re honest, bowel movements probably aren’t the most embarrassing thing you’ll talk about, especially if you’ve got children. The difference between knowing that your husband is having a particularly difficult poo, and being invested in the result? Love, apparently.