Nope.
No weapons allowed in the bar.
Especially not if the weapon in question is a really large sentient sword. That looks to be made of equal parts metal and meat and bone. With a big eye in it. Supported by a bunch of tendrils.
The giant scary sword is presently sipping some tea despite its lack of mouth. The tea is just running down the thing and pooling on the floor.
*ahem*
"Uuuh... Well. If you don't know who Cthulhu is then I probably shouldn't bother explaining. It's all very weird."
So very weird!