He looks down at Heine, raising an eyebrow. How did he enter...? Oh well. Apartment buildings don't have the strongest thresholds, what with people coming and going all the time. Besides, it seems everyone will think of Heine as his pet, giving him implicit permission to be here.

"Oh, my apologies," he says, careful not to confirm or deny whether or not he owns Heine. "I wasn't aware. Come along, Heine."

An opportunity to put Heine on a leash? He isn't about to pass that up.