I was holding my brother's newborn earlier today... I held them up a little bit, with them facing down at me, and they puked all over me. Pretty cool. Can't get the smell of baby vomit out of my nose.
I have had that happen to me many times.
Yeah, it was kind of a wake-up call, since I'm of the age to have children. Like, "Well, this is what I have to look forward to." I'm not wild about the idea of having to deal with getting little sleep and having to deal with their bodily fluids. But I know it will make my wife happy.
It is definitely  a lot of work, but it is the best type of work I have ever done.