"Your robes aren't flattering. I'd be lying if I said they were. You don't expect me to lie, do you? Just to appease your monstrous vanity?" Anders pulls a face. "As for mage impersonation -- if you aren't impersonating a mage, then I'm relieved. I hope I don't need to explain why."

There are very few scenarios where someone might want to impersonate a mage. The least objectionable of which would be some kinky horrible Templar sex games, like the ones Anders accused Aveline's first husband of playing. And that's still plenty objectionable, to Anders' mind. (Otherwise it wouldn't be a matter for accusation, would it?) Likelier would be mockery of the mage cause or of mages as a class. The parodic element is certainly suggested by Garrett's choice of staff, adorned with an ornament that verges on the obscene.

"Is that supposed to be Andraste on your staff?"