I tend to assume that everyone is on a best friend basis and no secrets should be held. This leads to oversharing.
no, really, do continue about what your favorite lunchable was as a child.
Somehow, I think that everyone is close enough with me to know everything about my life. And that leads to me rambling on and on and on about various aspects of my life that probably shouldn’t be shared with anyone. If I was really close with all of these captive audiences, they’d be able to tell me to shut up as I discuss the intricacies of my dogs wet food to dry food ratio, but unfortunately, those who aren’t really friends with me are forced to politely nod and pretend to pay attention as their eyes dart around the room looking for an object to jab into their eye or a person to save them.
This also manifests itself with food. I recently learned that as a child a shockingly high percentage of my family friends would keep special snacks in their house just because I liked them. I think this made me develop a complex. I now have no qualms about going into people’s houses and eating their food without asking. It’s really rude, but I’m not even cognizant of it, it has just become a reflex at this point. And because I tend to assume that everyone is really close with me, I will do this to complete strangers. In college I once demanded that someone make me a gluten free snack. When he refused, I simply got pepperoni and pudding from his refrigerator and asked for a spoon.
whatisshedoing 
Ah, memory jogged. I smoked in college (Marlboros!) Once, in the cafeteria, I took out a cigarette but did not have a light. I saw another student with a lit cigarette, walked over to him, took the cigarette from his hand, and lit mine. I still can see his face! I profusely apologized! 🙂