Very foolish. The Sentinelese are famously hostile to outsiders and any attempt to contact them in any way whatsoever. Try to land on Sentinel Island, get an arrow in the face. It’s been that way for centuries.
I wonder what would have happened if this missionary had taken some of the words ofEphesians chapter 6 as literal advice.
I bow to your response.
Indeed. His pun was right on target.
They should immediately send in Geraldo to investigate!
“Go THAT way.”
Unfortunately, there is no vaccine against stupidity.
It made me quiver.
How dare you offer such an exquisite response? Pluck Hew!
I guess he did not have a very good … position.
I can see how immunizations reduce the chance of you getting infected, but do they reduce the chance of you infecting the uncontacted tribes-people with something you’re carrying?
Dammit, it’s Yew! 
I suck.
Yes, because immunization means that you won’t be asymptomatically carrying that particular disease.
Wow, a compound quote!
We’re going to have to keep tabs on you till you’re a fully fletched punster.
Right, or at least you won’t be contagious.
I had had most of these immunizations in childhood but got boosters “just in case.”
They don’t give chickenpox vaccinations to adults in Panama so I had to go to a pediatrician to get the shot. Afterwards, I asked him if I could have a lollipop. 
It’s pretty certain they’d been raided by slavers in the past.
Did you get one?
“I used to be a proselytizer like you, until I took an arrow to the face.”
Yes, almost certainly. But let’s not open that can of worms again. 