Faolan looks up at Sirius, realizing he's addressing him again. Realizing he's still standing there, where he had been since the last time the other man had done so. If he were feeling better, he'd be a bit more embarrassed about that, but there's clearly something wrong with him, so for the moment he's got nothing to be sorry for.

"I..." Faolan says, before forcing himself to stand up straight. There can't be anything wrong with the sink. It's just a sink. It provides water. It...

Faolan wonders still whether there are any water bottles in the fridge. Who knows how long that sink has been there, who knows how many people have touched it. What will he experience if he touches it himself. How many other things must he suddenly be ridiculously concerned of coming in contact with.