Caught completely by surprise, probably. While we're semi-on-the-subject, let me link the original Leeroy Jenkins video for those who haven't seen it. You don't have to be a WoW player to appreciate it - just listen to the elaborate planning, and these dudes have a
plan, and see how it works out ;)
http://media.putfile.com/Leeroy-Jenkins
(Language warning - send the kids out of the room)