When I first thought of this joke I didn’t draw it because I figured it would be too hard to explain. Then, a couple days later, I thought, “So what?” With every joke, there’s a chance someone won’t get it. Sometimes, the funniest ones (of other people’s work) are those that are fairly obscure. So here ya go!
I have actually been in a restaurant when food from another restaurant was delivered to the workers. I don’t blame them, as you’d probably get tired of the food your place serves, I just find it funny.