Colonel Kira's Left Tit
Bearded Belly of Bajor
Nah, look at it this way. Tyrol has been through so much shit since the series started. He had to dump most of his people into space in the mini. He had to come to terms with the fact that his girlfriend was a Cylon. He was accused of being a Cylon and had to agree to committing one of his men to jail (Socinus). Pegasus. Kobol. The Temple of the Five. New Caprica. Finding out HE'S a Cylon. At some point, the poor guy had to snap. I'm not shocked at all that he's given up and just regards everything as a joke. It's perfectly in character. 