when ds was about a year old he was on my lap and started laughing, during which he threw back his head.......into my nose. both dh and i heard the crack of the bone. off to the e/r i went. about 6 months later ds was doing one of those trying to wiggle out of my arms manuevers and again, threw his head back............into my nose. another trip to the e/r (both times i went alone b/c we lived close and it was easier to leave dh home with both kids).
it should be noted that the first time you go to an e/r, alone w/ a broken nose and blame it on an infant they are pretty cool with it. the second time in 6 months.........they have a kindly social worker step in and counsel you about how there's no shame in disclosing who is battering you and getting help.