That's because KCMH (Port Columbus International Airport, eastnortheast
Columbus OH) are FAA controllers and KOSU (The Ohio State University
Airport/Don Scott Field, northwest Columbus OH) are contract tower.
We have had A LOT of problems with the contract employees at KOSU in the
past year. So much so that the FAA has sent us an address to send
complaints to.

Mike W. wrote:
The thing that amazed me, is that even though the controller did raise his
voice a bit, he remained very professional. If this guy had pulled that
stunt over at OSU, those guys would have barbequed his butt (verbally).