“Blood is thicker than water, I know, but it's unnatural stuff to drink so much of. (“The Wife Of Ted Wickham”)”
“Blood may be thicker than water, but friendship is thicker than both. ”
“Blood is thicker than water, as people say. (But then again so is ketchup.)”
“Nevertheless, blood is thicker than water, as anyone knows who has tasted both.”
“Blood may be thicker than water, but rivers run deeper...”
“They say blood is thicker than water, but I say ice, can be more solid than blood, when times get cold.”