I think I've stumbled upon another thing that might make me come across rude. Absent-mindedness and easy distractibility. Especially during exam time I won't remember a single stray thought later, unless I write it down instantly. Often I think to ask someone how they are doing or how X went, but when I actually see them, I've forgotten all about it.
These from actual notes I'm surrounded by currently:
While there are many things we can do to prepare for the unknown, we can never be prepared enough to dethrone Fortuna, the bitch-goddess of unpredictability
2 Cor. 3:6
Witch of Endor
Do I remember what half of those are about? Hell, no.