I've been onboard for 2 go-arounds and 2 aborted takeoffs. One of the go-arounds was in a Midwest Express DC-9 into SAT; the other was in an AA F100 into MCI. SAT was because the guy in front of us took a longer-than-expected rollout. MCI was during a storm and we circled for 15 minutes until weather settled a bit. In both cases I still got to my end destination on time and I was quite thankful that the pilots valued our safety more than the on-time landing. A go-around isn't that discomforting anyway, so it seems goofy that these Southwest pax are whining about it.

The aborted takeoff is a more unnatural sensation - going from 0 to 140 and back to 0 in a matter of a few seconds. Both of the times this happened to me were because a cockpit indicator showed one of the doors in the plane to be open. The FA's rechecked the doors, we taxied back to where we started, and took off. Again, even though the doors were probably closed, I'm glad the pilots didn't take any chances.