No rub a dub dub

Andrew HATES the bath, in fact, he hates any activity that includes getting wet. This is much like his father, I didn't know that this could be inherited? So, this evening after dinner, the kids were covered with sauce. I figured the easiest way to clean them completely was to bathe them. Brenton and I know that it will be a short, but loud process to bathe Andrew so we are prepared with soap, water and towels readily available. The instant he knows he is going into the bath, he SCREAMS. If the windows were open, it would sound as if we were torturing him. Tonight, was no different except for surprise he had for me when I put him in. He was screaming, like usual, but this time just as I put his bottom in the tub, he pooped! With great surprise, I screamed for Brenton to come up and help me. After all the chaos and commotion, I cleaned out the tub. But because the Lord has instilled me stubbornness, I was not going to let him off the hook, so I put him back in, and finished out the bath. I don't to be the mom of the "smelly kid" at school someday. I can clearly remember who the smelly kids were in my classes, I surely don't want Andrew to be that kid!
I don't get it! My other kids LOVE water and would stay in the bath or pool all day if I would let them. We didn't do anything different with him, but he hates it. Does anyone else have this problem, or any suggestions?