"Spike, if you materialize in my shower one more time, I'll - "
"It's not anything I haven't seen before. Besides, what are you going to do that you haven't already tried?"
Angel squeezed his eyes shut. Fred had said that Spike's ghostly form wasn't radiating any headache-inducing energies, but even she wasn't infallible.
The only thing Spike definitely radiated was smugness, but that shouldn't be enough to create the dull, throbbing ache at the base of Angel's skull. It never caused that before he was a ghost.
Though at least if Spike was material, he would've been able to punch him.