"You don't have to worry about that. They all get changed once a month. they are also water proof and if you try to take it off while it's on, it will zap you." she paced back and forth slightly now, tapping her chin. 

"You should know, I give you a lot more freedom than most vampires... But if you take that for granted or pass a certain line... I will take all that freedom away and turn you into my little lab rat.... You /will/ wish you were dead... Even more so if that wish is with you now." She then smiled a bit and giggled. "I'm sure you know kindness when you see it though."