I'm going to leave a very confused deli girl holding a pile of meat without saying a word
Why are you disrupting someone doing their job?
Because I can.
I don't think you'd want someone to make you do something at your job and leave you hanging, that is quite rude and can take up a lot of time for more important things.
But it would be funny.
Pulling such a prank on a stranger is unwise. You don't know how they will react.