Honestly, I was taught that you should not use a signal in a roundabout, especially when the exits are so tight it’s easy to get confused if someone turns it on too early. I see now though that it’s the law in my area when exiting and I’ll start using it. I’ll be in the minority here.

I’m still not going to enter a roundabout just because I see someone’s turn signal on. I never trust them when I’m the one merging into a lane.