None of those rules are universal. You will soon find there are no absolutes about anything.

1) The slave will walk 2 steps behind the Master and to his/her left. slave's that walk to the right of their Master are held very high and seen as that Master's "right hand man"

I walk with my love, sometimes to his right, sometimes to his left. Never behind.

2) All responses will start with "Yes, Master" and end with "Thank you, Master"

What if the answer is no, master? As in, do you know where I left my keys? Thanking him at the end of every sentence would get old very very quickly.

3) The slave will always refer to his/herself in the third party. I, me, and my are NOT allowed.

Only some people require this, imo ridiculously stilted, way of speaking.

4) Never touch somebody else's property. This includes toys. The biggest no no is touching an owned/collared slave.

We all should've learned not to touch without asking before kindergarten.

5) If the slave has a lock on its collar, the key will be worn on the Master's left side.

My love keeps his keys wherever he damn well pleases.

6) In a social setting, the slave will not introduce themselves without their Master's permission. If they are spoken to by anyone else other than their Master, the slave is only allowed to inform that person that they must get approval from that slave's Master.

I speak to whomever I chose to speak to, slave, master, switch, whatever. No one needs to get his permission to speak to me. I am after all a grown up.