Best way to deal with workplace harassment?

[WelshBloke]

What particular subject? I have a feeling I can guess, but I'd like to hear it from you first.

Hmm...

Is it...

"Why have you got that hat made from tin foil on?"

"Why are you hiding under your desk?"

"Have you been rummaging around in Julies trash again?"

"Are you really batshit insane or just pretending?"

I'm having trouble narrowing down my guess, I'm going to need some help.