Apple of Paranoia

The properties of this item are not to be given to players; intended for DM use primarily.

Looks like a normal apple, though a little shinier and redder than the average apple. Each time a player takes a bite of the apple, the DM has them make a wisdom saving throw. DM should write down (or pretend to write down) the result of the wisdom saving throw. There is no save DC. On a success, nothing happens. On a failure, nothing happens. It'll probably make your player pretty dang paranoid though, hence the name...