I was quite upset a few times, too, but then I told myself "it's a bloody game. i'm playing for fun and i should not let idiots ruin it."
If you don't get along with them, just ignore them. Some users are ... weird personalities. But well, it's life. ^^
Come back to Fiesta whenever you feel like it. Enjoy whatever you're going to do.
(do some physics, perhaps =P )