Or hey, maybe it's Martin's tie. Yeah, that's it, he's wearing Martin's clothes. Heh.

That's exactly what I thought when I saw it. They had a late morning (heh) and Danny just grabbed whatever. After all, Martin had just come back from a trip of enforced celibacy. Yeah, it was like two days. But still. Martin missed Danny and they had lots and lots of 'missd you, glad you're back' sex, leading to their tragic sartorial decisions.

That's my story and I'm sticking to it.