[Earthling]

I think it sucks for you, but that it is a wise and fair policy. I've seen nepotism at work and it isn't fun. It doesn't sound like you take advantage of your dad being your supervisor but many people would, and so I don't blame your employers for being cautious.

 

[Earthling]

I think the bathroom thing is stupid. How often are you taking a bathroom break?

IMO you're taking the rule change too personally, but it's understandable because it sounds like a bit of a sucky company to work for.