[Goober5000]

One of the FreakSpace cartoons, perhaps?
http://www.shatteredstar.org/groups/freespace/freakspace.html

None of them seem to be exactly what you describe, however.

[redsniper]

Nah that was the first place I looked.

[redsniper]

Like they're flying around and say hello to an Orion and then it launches like a million perseuses.

[qwadtep]

Like they're flying around and say hello to an Orion and then it launches like a million perseuses.

It turns out that the energy patterns of a laser hitting a shield are actually the Shivans' natural form of communication. They were just as confused as anyone at the Terran and Zod response to their attempts at first contact, and thus expanded their broadcasts to include missiles and beams. In the end they concluded that these species, like the Ancients ten thousand years before, were xenocidal empires with no interest in peace, and thus took up actual arms to protect themselves from the aggressors.
It's tragic, really.

[S-99]

Carl invited all of his buddies over for a nice real shivan meal just beyond that third knossos. He'd been to earth and cloned a lot of pigs for pulled pork and bbq sandwiches. That sounds delicious!

All of those sathanases turned around to head for the capella sun when they saw and more than objected to carls lifestyle and get up.

They sought a bbq after wishing they could poke their minds eye or eyes out. They caused a supernova in a major mass suicide.

A few sathanases escaped just before the last moment. They figured for what they saw of carl, they could care less since the food smelled sooo good.