Answer:
Yes, they do it to make you scared of what they are capable of but at the same time you need to keep in mind that their goal is to startle you and make you fear them
Explanation:
Choosing a Vitamin Supplement
Bone marrow contains blood I think, so it would be considered a donor procedure since you're donating blood.
B) Vaginal
Vaginal is always the best option, all these others have a higher risk of damage to the internal glands.