Yes. VERY.
I have encountered three people in the wild who actually believe that Alaska is an island.
The best time was when I was traveling with my kid and they said we were from Alaska to a group of people in an elevator. One of the kids in the elevator said “can you drive to Alaska?”. the mom told then her , “they can’t drive to Alaska because it’s an island! and that’s why there at the airport!”
To which the DAD replied “ARE YOU FREAKIN SERIOUS? WTF.” 
Yes. VERY. I have encountered three people in the wild who actually believe that Alaska is an island. The best time was when I was traveling with my kid and they said we were from Alaska to a group of people in an elevator. One of the kids in the elevator said “can you drive to Alaska?”. the mom told then her , “they can’t drive to Alaska because it’s an island! and that’s why there at the airport!” To which the DAD replied “ARE YOU FREAKIN SERIOUS? WTF.” 
That was pretty good.
I’ve done that to my ex wife in public a couple of times.
I learned that someone being hot does not compensate for stupid.