What "Replacement Cusswords" do you use in public?

[SimuLord]

From Freakazoid: "Aw, nutbunnies!"

 

[tjarne]

Feth and frak, me like 40k

 

[Ursus Astrorum]

"Son of an expletive" is one I use often, though as a geek I'm also prone to frack, frell, gorram, and because of Supernatural, idjit.