The tower at Fairbanks, Alaska has a nasty little habit of clearing people to land when they're 20+ miles from the airport if it's really slow, and they just have one guy working Approach/Tower/Ground/Clearance from the tower cab. One late summer evening, a guy called in with "Approach, Cessna 12345 (position) with (ATIS), request floatpond 19." The guy gave him a squawk, and a few moments later responded with "Floatplane 12345's radar contact (Position), enter left base, cleared to land floatpond 19." He acknowledged the clearance, and some time passed. Then, apparently the tower had the airplane in sight. He watched him turn final for the float pond, and probably a mile final, tower (very slowly, and enunciating) made the following transmission: "Cessna 12345, Ummmm...you ARE cleared to land floatpond 19; BE ADVISED SIR, YOU ARE NOT ON FLOATS! Say intentions?" The response was "Oh Sh!t, um, yeah, hey how 'bout 19L? And while you're at it, you can make that callsign Cessna 56789, instead, too." The controller was laughing so hard he could barely clear the guy to land on 19L.
This led up to what happened next.
The controller was probably still recovering from the "floatplane" incident, when an Alaska 737 checked in. The controller cleared him to land on 19L. (19L at the time was a 3200X60 runway.) There was a pause, followed by "Well, looks a little tight, but we'll try it" from Alaska. The controller corrected himself, issued the guy the right side, and said something to the effect of, "you're sure welcome to try it, why not? At least I gave you a hard surface. Just had a guy in a 185 on wheels request the floatpond!"