You have to rub the lamp on a weekday. Everyone knows genies don’t work on Shabbos!
If you rub it on Shabbos, listen very closely – you just might hear the singing, “Ain’t gonna work on Saturday, ain’t gonna work on Saturday! Double, double, triple pay won’t make me work on Saturday. Ain’t gonna work on Saturday – it’s Shabbos Kodesh!”
🙂
Deserves to be repeated