That what I told a friend at work last night when another coworker commented on the string of hickeys around her neck. (I exaggerate a little)
We all started laughing and joking about them with her which of course embarrassed her slightly but I don't think she realizes that we are older and probably a little jealous that we don't have that problem anymore.
Anyway I learned at a young age that you can have all that fun and not leave any evidence behind.
It is really a man's way of marking his territory - basically the same as a dog pissing on a fence to let the world know,"I was here."