I was doing a milk run from GABS the other day. The tower controller stated "without delay, cleared for takeoff..." As I approached V1, my copilot called an abort. We stopped the plane and I queried on why we aborted, and he stated the tower had cancelled our clearance. When I called the tower asking why he canceled our takeoff clearance on the roll, he responded "I cleared you for takeoff, just not that fast, I wasn't ready for you yet..."
This was the same controller that told me to exit at taxiway A, and when I asked if he wanted me to give way to the airplane already on A he said "what, there is an airplane there? I can't see through the papers on the window..."