Last night I was farming the cave in Skywatch for some drops. Was at it for about 2 hours or so. It's so mundane and mind numbing. But then something happened. A message popped up in the lower left corner of the screen, something like "Ememies organizing..." or "Ememies gathering...". This was not a public event, it was different. Instead of the regular Hive coming out of the farming cave, Wizards started coming out. After like an hour of shooting the same enemies over and over, I was like WTF?
Then more enemies started flooding the entire field from every spawn point, yellows all over the place, Hive Knights, Wizards, Fallen Captains. Most of the enemies were resistant to our weapons and could only be killed with supers. It was out of control. There was probably 3 of us farming (level 20+), then more players came in to help There were guardians everywhere firing off supers, generating dozens of nodes of light. It probably lasted 5 or so minutes, people actually got killed and needed reviving. It was a huge surprise after grinding level 5 enemies for so long. It was like the game knew we were gaming the system and tried to make us stop.
Things like this is makes the mundane in Destiny more exciting.