How does a pilot switch from IFR to VFR mid-flight? I had a pilot tell me that a rude ATC controller was making him fly way off route and through clouds and turbulence. So he switched to VFR and climbed out of the mess and towards the direction he wanted to go. Without getting into who was right or wrong in this particular situation, how does one cancel IFR mid-flight?
You simply tell ATC your request:


  A: DEXPL, request cancel IFR.
  R: DEXPL, roger, report VMC.
  A: DEXPL, we are VMC.
  R: DEXPL, IFR cancelled at 20. Squawk VFR, approved to leave frequency.