I'd hear his reasoning before dismissing him out of hand, Moe. Could be it's for religious reasons; Crom told him that vaccinations are for pussies and real Cimmerians laugh off the sniffles.
I had to tickle my brain with the giant Qtip at work twice today. I did it before my shift began at 8, then, the RN that oversaw it sheepishly came looking for me again around 11: she forgot to read my morning results (it has to be done within 30 minutes, or the test is no good), so, I had to repeat the process.