"Because I raised him to behave rationally"

Pharygnula responds to a rather odd story told by one of ID's bigshots:

A rabbi and a scientist were traveling together on an airplane. Each brought with them a grandson. The rabbi’s grandson came every few minutes to check on his grandfather’s welfare and inquire as to his needs, while the scientists’ grandson sat in back watching the movie, never once coming forward. The scientist asked the rabbi why his grandson was so profoundly respectful, whereas the scientists’ grandson had forgotten that his grandfather was even alive. The rabbi replied, “In our tradition, God gave the Torah to Moses at Sinai, and the closer you are to that great moment of revelation and truth, the more respect you deserve. Hence, my grandson accords me respect. But as an evolutionist, you believe that mankind begins in a primordial soup, and becomes ever more complex and developed with the passage of time. Every successive generation moves further away from its primate ancestors. Hence, your grandson believes he is your superior and that you should be respecting him. [[As told by one of my colleagues.]]

Besides the silly false inferences from evolution, the rabbi's grandson has serious issues. I've never traveled anywhere with my grandparents (being old means you stay home while relatives come to you), but my parents would never complain if I watched a movie on a trip, and probably would complain if I checked on them every few minutes, which would be majorly weird and unecessary. I can imagine an alternate ending:

The rabbi asked the scientist why his grandson was so respectful, whereas the rabbi's grandson was getting really annoying. The scientist replied, "Because I raised him to behave rationally, and consider whether a course of action makes sense before doing it, instead of merely looking at whether it seems superficially pious."