For those of you whose play involves release at session end I wonder about what kind of twists you have experienced?

About 20-25 years ago in a session that involved my first introduction to an Erostek I experienced a very interesting twist at the finale. I was securely bound face up on a table with the famous blue bands still in place. She told me I had permission to climax and applied a magic wand while counting to 5 at a steady pace. At "5" the wand clicked off (very frustrating) and the electricity came on, also accompanied with a steady 1...2...3...4...5 count. She told me the electricity would get turned up a notch every cycle until we finished

Amazing experience! This was early 2000's and it still stands out in my mind.

Anyone else ever experience or use similar tactics that really demanded the sub's performance in a session finale?