Threadhopping with this character?: Depends on the thread. Mostly her threads are private interactions, but in the right situation with an owner and their angel, thread hopping is okay.
Backtagging with this character?: Certain posts are okay, especially inspection posts.
Hugging this character?: Not a good idea. She's not the hugging type.
Giving this character a kiss?: Not a good idea unless in a personal relationship with her.
Something more intimate?: Not a good idea unless in a personal relationship with her.
Relationships?: She's a single workaholic.
Punching this character: Bad idea. One, it'll get your character arrested for assaulting an officer and two, she's trained in many forms of martial arts and weapons.
Injury?: Also a bad idea. It'll get your character arrested for assaulting an officer and depending on the severity of the injury could result in an attempted murder charge. PM first.
Death?: That'll definitely get your character arrested for murder. PM first.
Freeing/Capturing this character: Bad idea kidnapping an federal officer. PM first.
Is there anything you do not want mentioned near this character?: Not really. She's tough.
Is there anything you need us to know about interacting with this character?: Murphy is well versed in things weird and magical. She's also tough as nail at work. Don't take it personally if she's not that nice.
Anything else, please mention here: Fish sticks. That's right, fish sticks.