Firstly, let me say I am not Jewish, so I hope I’m not intruding here. I used to work out at a JCC and I was once asked by a gentleman if I could hold his (rather heavy) bag because it had religious items in it and he couldn’t take it in with him. Having been raised Christian/Catholic, I’d never been aware that there was a rule about this sort of thing. So, my question is, what are you not allowed to take into the bathroom and why? Again, sorry if this is not allowed here and also if I’m being dense.
Edit: Thanks for your help everyone!