I think it depends on the person and situation and what was said. For instance, I'm forced to put up with family that I can't stand. I can go day to day, getting along or keeping the peace..but every so often things just build up, come to a head and I let it all out and say what I'm really feeling/thinking on the inside..and it's ugly. I'm not one of those people who walk around angry and miserable but I won't deny that it's hidden inside.

On the other hand there are times I do say jackass things out of anger that I don't mean but it's in a different context. Like when my cat throws a fit and yells at me because the litter box isn't clean enough.. I threaten to dump him on the beach where he can have miles and miles of clean litter. I've said much worse than that and it's more out of anger/annoyance and I don't mean any of it. Like, why can't he wait until I'm done eating before having to crap?