Wowcrendor has nailed the universal experience PUG experience with this video. That probably shouldn't be a surprise, given his history of success, but I was almost shocked at how accurate this portrayal turned out to be.
If you're skeptical, let me assure you these things do happen. During a recent run of about 10 PUG groups, I came across two healers who were actually DPSers. They both asked someone else to heal. I hear the same thing happens with tanks, but since that's my preferred dungeon role, I never observe this myself.
In the end, this is a nice video from Wowcrendor. I just can't decide if it makes me want to laugh or cry.
Interested in the wide world of machinima? We have new movies every weekday here on WoW Moviewatch! Have suggestions for machinima we ought to feature? Toss us an email at email@example.com.