Some of the rudest, most obnoxious, arrogant Expats I had the bad luck to encounter in South Korea were ... Mormon missionaries. Some were yanks. Some were Canucks. Some were supposedly from Europe. Which goes to show that mookishness knows no boundaries.
The first school I worked at was nicknamed "The Mormon School." The owners were Mormon. The morning desk staff were Mormon. If you walked in during the AM you would hear the front desk singing hymns. Mormon Missionaries would drop in all the time. And the Missionaries seemed to be the worst of the crop.
You would be having a conversation with a co-worker or student and the missionaries would feel the need to interject. Regardless of the topic. Without so much as an excuse me. Or even introducing themselves. That is when they weren't hogging the ONE computer we had for staff and students to use.
One time a co-worker and I were talking in the staff room. One of the missionaries let himself in. I was telling Matt how I learned what "do you want to die" was in Korean. This mookanary felt the need to chime in and lecture us on how no one should be teaching us words like that. He was given some prime examples of other words he didn't like ... and told that since he didn't work at the school he could get the fuck out of the STAFF room.
Several missionaries felt the need to inform me, and friends, that they don't care about us. By "don't care about you" they meant they didn't care what we did in South Korea or what our religion was I assume. Or maybe they meant they literally didn't give a shit about foreigners at all. And that is the wording some of the used ... "we don't care about you". They were in South korea to "save the heathens". Nice attitude. Great way to make introduce yourself. "Hi, I am Elder Asshole. I don't care what you are doing in Korea. I am here to save the heathens. Hoo Rah!"
Then you had the ones that insisted you use their title "Elder". Imagine some snot nosed little shit 10 years or more your junior insisting that you call them Elder.
Some of them even fell into the "sense of entitlement" category I discussed in a previous thread. I remember one day when I was hurrying to work. I had a couple of minutes to go or I would be late. Two Moron ... errr Mormon missionaries ... were coming up the sidewalk. It was a huge sidewalk, 4 Expats could walk side by side on it. At the last second these two cut in front of me. I had to stop or plow into them. Unfortunately, I chose to be polite and stopped.
One of the mooks said "Hi. are you in a hurry?"
Biting my tongue I said "Yes, I am almost late for work."
He said "oh" and then started asking some inane question. I ended up shouldering them aside and hurrying to work. Made it with seconds to spare.
I know friends who had ok encounters with Moromon missionaries. I know those who had encounters like mine. Unfortunately all of my encounters with them were bad in some way. They just came off as too full of themselves and too mookish.