You take a small plastic bag and fill it with some of the shit. You quickly throw the rest down the toilet and flush. Informing your uncle that the shit has been disposed of you decide to head off to bed. That night you begin to plan out how to infect your uncle with the tainted shit.
The next morning you come down for breakfast and see Uncle Jack sitting at the table, drinking his morning coffee. While you start making some eggs for yourself, he asks you to refill his coffee cup for him. Taking the cup you walk over to the coffee pot. Turning around to make sure Uncle Jack is distracted by the morning paper. You fill his cup and use your finger to add a small sample of the shit to the drink. Stirling in some sugar to help mix the shit into the coffee. You hand it back to your uncle and wait to see what will happen.