Kiwi Farms

Hey there, this was something I've wanted to do for a long while.
I want to give furries brownies spiked with laxatives, but unfortunately, I don't have a plan other than just serving them and leaving.
What would there be a good strategy to dart the place without no one knowing while also serving each furry there a brownie?
Is there anything else that I could spike it with that would also be funny? (And no, before anyone asks, not cyanide.)
Would wearing a fursuit better disguise my identity to the public?
Would the TSA write something down?
Here's an illustration of my plans in action.