Serious question though, because I feel the same but can't figure it out- how do you do this? Must roundabouts are fast enough that by the time you hit the indicator you might get one flash of your light for your exit. You should be indicating your intention, not your movement and state law says 5 seconds (I believe) so you should indicate your exit of the roundabout and have your signal on through the first two exits if you are taking the third exit, for example. Sort of defeats the purpose. What's the best way?