Every so often a thread like this pops up, and each time I sit and cringe while reading, then I go and stare at my shave stuff just to reinforce the importance of caution and focus while using it.
If you consider "experimenting" dumb, then I have tried multiple prep combos with mostly painful results. Including no lubrication at all, while showering (no cream), using olive oil, using butter, etc.
That's how I started shaving with two blades in the Shake Sharp, couldn't understand why the shave was so much better...Accidentally had two blades in my DE , started shaving , then wondered why the razor was not cutting well.