Boards
without a doubt, the most annoying thing in the world...
is when you're mid conversation with someone when they break their mobile phone out and start texting someone.
so not only does your side of the conversation go unheard, you have to stop in your tracks and wait for any kind of response, but the only response you get is a slight "yeah..." or something after 2 minutes of uneasy silence.
anyone who does this should be punched immediately.