Flying a proto-drake (because we finished the Glory of the Hero thing yesterday and got our proto-drake mounts) feels like you will plummet to your death at any second. The wings move as if they're heavier than the body, and although I know it's all bound by the laws of programming I still feel uneasy when riding my proto-drake, eyeing my levitate button, just to be ready. You know, like you hold on to something in an elevator just in case the floor would fall out... Well maybe that's just me.
We did AQ20 today too, and only had some trouble on Ayamiss, because no one had bothered checking what to do when she/he/it paralyzes someone and how to get her/him/it down from being high up. Some wowheading solved those problems.
We cleared some trash to first boss in AQ40 and two mounts dropped. So getting those seems fairly easy. Really bothers me that you can't take those awesomely cool mounts outside the instance tho! You should at least be able to pay someone somewhere to be able to ride them anywhere, seriously.
We started out on a try for the "undying" achi in Naxx and everything went just swell (we were only 8 people too, trying for the "dedicated few achi at the same time) when it happened. On Gluth's decimate the retridin judges himself to death with SoB. Don't know if someone killing themselves counts (but I would think it does), but still... of all the ways to fail that achi.