The avie Leeroy Jenkins shows up, and then dusts his entire group's chances of survival , by just charging in. He'd missed the whole meeting, was in his father's kitchen making chicken. There is a total group wipe, with alot of cursing of LeeRoy Jenkins. At the end, LeeRoy says "At least I have chicken"
He has since become semi-immortalized as an example of what not to do. Whenever you hear people talking about LeeRoy Jenkins, now you now what they mean.