I was kidding. It's really Sammi. Well, Samantha if you want to be all technical about it. I put Sammi on everything though, even paperwork 
My name is Samantha too, only when I'm naughty though? I know when I'm in trouble if my parents, or a boyfriend call me by my full name? Otherwise it is Sami for everything, and everyone else 
Well, actually I don't sign my last name on nearly anything. It's just Sammi.  Though it's a squiggle so I doubt you can read what it says anyways  some of my closest friends forget I have a last name half the time