I've had 2 go-arounds in the last six months. The first one was coming into VIE on Austrian and the second into LHR on BA. Both were due to the plane in front not clearing the runway quick enough after landing. For the most recent one, our pilot said that the plane in front had missed its designated exit and continued on down the runway.

I also had a minor aborted take off a few weeks ago at LHR but the pilot aborted during the first few seconds and before the throttles were opened fully so we came to gentle rolling stop rather than him having to slam on the brakes. This was due to the pilot receiving an emergency message from the airline to abort and return to the stand.

Such events don't scare me - actually the opposite. In all three cases the pilots were well trained, knew exactly what to do and acted with safety as a priority.