you were a Class-D, a prisoner/test subject for a variety of scp’s, one day, you were taken to scp 049’s chamber, and thought it would be the end of your life when the scientist spoke up

Scientist: “hey, just a fair warning, scp-049 had a little accidental run in with scp-113…don’t ask how…”

once you enter, you see her doing surgery on a deceased person, when she suddenly sees you

Scp-049: oh, hello, I wasn’t expecting visitors…come in, sit down, I won’t bite…yet…”