He shouldn't feel bad about thinking that way; that's pretty much what everyone thinks when they see Penelope coming. She'd probably be disappointed if they weren't annoyed by her arrival.

She tilts her head to the side and furrows her brow at Severus, mildly pouting. What, you mean to tell me you're not made borderline euphoric by my presence?, as if to say. It's a practiced look. He's not remotely the first to get it, and likely not even close to being last. Unless she dies soon or something! What a cheery thought.

"So, you're better at this shit than I am," which goes without saying, but it's good to concede something at the beginning of a conversation with a person like Severus if you're planning to get anywhere, "what do you think, is it a good idea to go blabbing over the Network in unlocked posts about magic, or is it totally okay given that half the city runs off it? I'd appreciate an expert opinion."