Random Things About Me I'm gonna change the title so it's unique

I need input

So if any of y'all read UltimateDragonTamer (who u should follow) they asked peeps to give them pranks. I WANNA DO THAT. I need pranks for:
Emily: She is good at everything EXCEPT predicting what's about to happen. Something unpredictable.
Aaron: He hates flies. Something involving flies, plz *maniacal laughing*
Scott: He's really sporty. I'm not sure what to do. Any prank'll work.
Henry: SOMETHING INVOLVING CHEESE

That's it! Please give meh ideas