If it irritated me that much, I would probably 
choose the 3rd option. Maybe complaining to close 
friends, but I really wouldn't want to make 
someone look bad to other people if I was the 
only one who was annoyed, and especially if I 
really didn't know the person and understand 
their behavior.

I wouldn't complain in the e-mail at first, but 
rather try to get an explanation as to why they 
do what they do :) Then if they're just being an 
ass, well, I'd probably keep my opinions to 
myself. It's kinda hard to make some people to 
stop doing certain things just because it bothers 
you :/