Dolphins were a minor interstellar power. They built, operated, repaired, and designed their own ships. All without having hands. They used the ripples in the water caused by echolocation to operate all their machinery, and the only help they accepted from the humans was a few construction robots.
I may have declared war against that nation at some point.
-Also, I managed to kill an entire infantry division by dropping leaflets on their position. In same RP we also shot tanks at point-blank range with 18" Battelship-guns, fought against invading humoungous mechas FROM SPACE and won by selling them kittens, took down a helicopter by grappling-hooking one, while another attempt resulted in an IFV playing ninja-ropes using heavy-lift helicopters.
Aside from that, there was one instance (again, same RP) of capturing the launch-codes for another nation's nuclear arsenal, and retargeting the missiles to detonate inside their own siloes... simultaneously, while zombies clawed at our compound.
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In another RP, was a rather... odd moment...
-Goose-stepping down a steep hill to outrun zombies and charge upon a fascist fortification
at the same time. Later that character took a Milan ATGM to the face when the French decided to invade.
-Gaining a werewolf's trust by feeding it liver and onions, then shooting her boyfriend (who btw, actually cooked the meal) in the back of the head because my character took a figure-of-speech too literally, and was forgiven for it.
And of course there is the infamous cheeseburger-scene in a fallout-RP. Although it would probably go instead to subverting a rape-scene by replacing the damsel in distress companion with a nightstalker-companion.