Who knew there were so many types of affairs?! Romantic, casual, emotional, cyber and even sanctioned 'hook ups' are all on the list but for now, let's focus on a general view of extra-marital activities. Why do people engage in hanky-panky? This is a complicated question which, by nature, would require a complicated answer. However, as nobody in their right mind wants to read about complicated things (although you likely would if you’ve read this far) we’ll keep it simple and focus on just one aspect. One.