[General] What goes around, comes around.

[Silverobama]

I think "What goes around, comes around" is still used but maybe in some very specific contexts. And the following is mine:

Let’s say someone, a tutor, for example, earned a lot of money by teaching students. But he didn't earn the money by doing all what he needed to do. For example, a class lasts for two hours and he cut the time to one and a half. He wasn't responsible but he still earned a lot of money because his popularity and fame. When this man got older, his money was spent in ways he didn't want to spend. For example, his money was for seeking medical help, not like others who spends money as they want.

A similar question was asked here but sentences are not allowed there. My question is also a bit different. Is it natural to say "What goes around, comes around" when I listen to this story? If not, would you please suggest one alternative?

 

[teechar]

I think "What goes around, comes around" is still used [STRIKE]but maybe[/STRIKE] in [STRIKE]some very specific[/STRIKE] the right context.

Yes, it's a common idiom.
Here's the explanation.
https://www.merriam-webster.com/dictionary/what goes around comes around

Let’s say someone, a tutor, for example, earned a lot of money by teaching students. But he didn't earn the money by doing all what he needed to do. For example, a class lasts for two hours and he cut the time to one and a half. He wasn't responsible but he still earned a lot of money because of his popularity and fame. When this man got older, his money was spent in ways he hadn't anticipated. [STRIKE]didn't want to spend.[/STRIKE] For example, he got sick and had large medical bills. [STRIKE]his money was for seeking medical help, not like others who spends money as they want.[/STRIKE]

No. Don't use "What goes around, comes around" for that context.
Try: He never got the chance to enjoy his ill-gotten gains.
https://www.collinsdictionary.com/dictionary/english/ill-gotten-gains

 

[Tarheel]

Silver, I think you mean to say the sessions were supposed to last for two hours, but he ended them after an hour and a half. (It seems to me that me that he cheated his students.)

 

[tedmc]

Silver, I think you mean to say the sessions were supposed to last for two hours, but he ended them after an hour and a half. (It seems to me that me that he cheated his students.)

I wouldn't call that cheating. I'd say he shortchanged his students by spending less time for them than he was supposed to. He became popular nevertheless and he must been doing that over a long period of time. His business must have been good and the students did not seem to mind, so who is to say that "his gains were ill-gotten"?

 

[Tarheel]

I wouldn't call that cheating. I'd say he shortchanged his students by spending less time for them than he was supposed to. He became popular nevertheless and he must have been doing that over a long period of time. His business must have been good and the students did not seem to mind, so who is to say that "his gains were ill-gotten"?

That's a good point. However, if I was knew the session was going to last an hour and a half I wouldn't promise that it would last two hours. (Honesty is always the best policy.)