Maybe it's a Rite of Passage to Fatherhood?

April 2009 - Cole's curdled spit-up on Thomas's face...and down his shirt

January 2011- Tyson's curdled spit-up on Thomas's face...and neck

I'd like to point out that as their mother I have yet to get any spit-up on my face or neck. Maybe I'm lucky, maybe I'm better at not bouncing just-been-fed babies above my face :)