I don't know what "accident" (or even "incident") you're talking about. What happens is: the guard looks at the bottle, asks if I have a prescription. I show the (fake) paper, they look at it, nod and let me go. No record is ever made of this.

Most of the time, the guard doesn't even speak the language; I'm not sure they're even trying to read it, they're just ticking a box in their mind that says "there was a paper".

My guess is, it would work with any paper; I may try that some day (show a completely unrelated prescription, or something that isn't even a prescription).

most countries don't track incidents like these and they're treated on a case by case basis. i've only ever had exceptions on flights to the US treated with an overbearing amount of discretion. basically- feel free to use this method of "forgery" anywhere in the asias or the middle east or europe(apart from the g5) or south america. only japan and america could pose issues