[fivecatsandadog]

I think Damon claimed his knee ran into the dog (?) and bloodied his nose, as in an "accident". Sounds like another case of smoke and mirrors to me.

[MizSterious]

Yes, I think a lot of Damon's ramblings were smoke and mirrors, instruments of misdirection. Like when the magician says, look at this hand! All the while he's palming the card in the other hand. So with all this door open, alarm blinking, door closed, alarm not blinking, etc., it's as though he's saying Look at all of this (and not at something else he wants to hide).