A few thoughts:
1) Smitty is correct....really get to know the rules.
2) You were correct in not calling something you did not know how to administer.
(See first thought)
3) For me, it doesn't matter WHAT the player says...it's HOW the player says it! It is unsporting, IMO, to come up to you and "chest bump" or get in your face or whatever that player did...WHACK! (..and then refer to thought one again)
4) Another thought...keep posting your situations...it not only helps you learn, but others that are reading these posts as well.