...like- make a sound or do something or... aren't they a vampire?
"...well that's perfectly normal. Didn't sound like an animal though. Alrighty, who's there? If you're here to kill me, make it quick, if you're kidnapping me for ransom, no one's gonna pay for me back, trust me, if you're kidnapping me just because you're a freak, I assure you you'll highly regret it because I am very annoying and I will torture you until you're eventually tired of me and will either kill me or just let me go. Take your pick, snake noise person."