Well, the thing that worried me was the pharmacist saying it, and rather seriously.

He basically said to one of my friends, "I don't feel safe giving you this and letting you walk out of here until I know you won't pass out. I've watched 5 people faint onto the floor from that chair just this week. So, please just sit there so we can keep an eye on you."

You know that the Small Pox vaccine doesn't do that shit, right? That's not a normal response to a vaccine.