This is exactly what I was talking about.
I didn't want to intrude into a private disagreement.
I have neither asserted that Christian rules are silly or they are not.
What I suspect might happen is that your disagree in this case will list a Christian rule, and you'll say that doesn't count, because it isn't really a Christian rule.
For example, isn't it a bit silly to prohibit boiling a kid (goat) in its mother's milk? That's one of the original Ten Commandments, not the mistaken modern version of the Ten.
And your response might possibly be "that's an old testament rule, and we aren't bound by the old testament, except when we are."
Isn't it a bit silly to say women can't be pastors and priests?
But large sections of Christianity do have women pastors and priests.
Okay, what about fish on Friday? Nope, that's just the Catholics, and according to fundamentalists Catholics aren't Christian.
You see where I'm going? There is no one set of Christian rules that everybody agrees on. The larger denominations have catechisms that specify the rules of faith in detail but I'm pretty sure yours does not. There's a good chance that any example of a silly rule could be dismissed as not really a Christian rule.
There is also a large part of Jesus's ministry that is ignored or disbelieved by modern Christians. These are "rules" that I find very compelling but mean nothing to the more conservative ends of the spectrum.