[i was not taught to share in kindergarten]
That sad moment when you're having an exciting experience and you want with all your heart to enjoy every moment of it, but your mind keeps going back to a point when someone mentioned it to someone who wasn't you — and now this whole moment is not about you anymore, it's so someone else's that you want to cry, or wipe your memory, or smash the bastard's head in.
Someone slept in my bed and ate my food. The worst part — he didn't even notice and wouldn't care if he did.
Asshole.