K.M.
I think this is one that you and the little one should bow out of unless you personally would get something out of going. If you were not close with him I think it would be acceptable for you and the little one to stay home - this is a receipe for a cranky little one and you do not want to be the one who brought the "bad child" to the funeral. I know the circumstances but that does not mean anyone else would or would care. So, based on that theory of crankiness I would sit this one out.