Well... I definitely have wanted to do an epic quit... I know I never will for reasons state above, but I sure would like to!
I work in a call center right now, and so I was considering several options. Since the call center is entirely US based, not outsourcing, I thought it would be funny to answer all my calls on my last day with an Indian accent, or maybe to answer the phone but instead of "Thank you for calling (my company)" I'd say "Thank you for calling (competing company)" and just confuse people... Not super epic, but sure would be funny.