two can play at this game

well intentioned friend:  so are you going to darken your hair now?

asshole roommate:  kkkkwkkkkwwwkwwwkkkwkwkwkwwwkkkkwkwkw (makes static noises).  weird.  you cut out. 

later...

asshole roommate:  are you still there?  did you figure that a good way to end this conversation was to just stop talking and pretend to not be there?  

well intentioned friend:  oh.  uh.  sorry, i was sending a text.  you seemed to be on a roll, so it seemed like a good time to text someone else.