Ok - so alcohol soaking is a bad idea, then. That's why I asked.
So how about other ways of destroying the paper safely and quickly in front of the and by the spectator, such as shredding or wetting it? The paper does not need to be totally destroyed, but only the word.
It's not the technique that I looking for, but creative ideas for safely discarding a written note predicition.
If i want to destroy a piece of paper or something like that, i usually do my fire alarm illusion/stunt. it basically has to do with me holding a fire ball in my hand then picking it up with the other hand holding it between the fingers, then touching my tongue to the fire ball. then i place the fire ball in the ashtray with the prediction paper or card and it is quickly destroyed. however i only recommend this trick if you are good with working with fire. the fire alarm trick is a stunt type illusion. in other words you really are holding a flaming ball in your hand with nothing between your skin and the fire ball. This is why it is also a stunt and requires some skill in handling fire.
oh yeah, and even though it does not sound like it, it is very safe. thereason is because of the chemical solution you use to create the fire ball. it burns cooler than ordinary fuels and when dropped it will go out due to its quick and sensitive burning properties.