Kwip doesn't like elves. Any kind of elves.
"I think I’ve got a solution to this, though. I’m going to commission one of those clever goblin bastiches to print me up a chest piece that reads "I HATE ELVES." And on the back it can say, "YES, EVEN -YOUR- BREED OF ELVISHNESS.""
You can read about Kwip teaching an elf a lesson here .