Take a number
I fail to understand the humour here.
Is there some context required?
Have you ever waited in line for an order, with a ticket, and it seemed like you got skipped? I assume that was a coincidence, and probably your order just took a little longer, or the ticket numbers aren’t in order anyway. This comic jokes that it’s intentional to spite you.
And it happens in a particular high frequency to people that asks for unpopular items, like the veggie burger there.
Or the people that ask for unsalted fries so they’re fresh. The people know exactly why you ask, sometimes they get upset with the extra work.
Sometimes they just take the salted fries, throw them back in the fryer for a few seconds to “wash away the salt” and then give them to you. Now you get slightly older, extra oily fries instead.
They won’t do that due to dietary restrictions, that’s asking for a lawsuit.

Happened when I work in fast food.

Are there people allergic to salt?

The customer would tell right away.

Not salt, but that goes against every food handling process, and if you did that once, management would have been informed by the customer.

Sure, some edgy teenagers probably do it once or twice, but they’re not gonna have a job much past that day. There’s a bunch of other “legal” stuff to do, that’s gonna bother them even more.

You sound like you’ve never worked fast food in a dying restaurant. I guarantee the things that happen in some of those places would shock you.

lol, there’s a fucking reason they’re dying.

You’re deep frying salt of fries thinking they won’t notice. Why do you think no one wants to go back…?