Whatever Rick and Jerry see in the Talking Cat's brain scan from "Claw and Hoarder: Special Ricktim's Morty" is not proven to the audience, but it can be apparently so awful that Jerry vomits and is minimized to a Troubled Fetal Position in tears, even Rick practically eats his gun in horror, and Rick erases Jerry's memory of the incident so he is not going to have to dwell with it.