There are few effects more feared than the pooshoe effect: where you step in the poo, and it sticks to your shoe.
For example:
Someone needs something done in ADO or Jira, but you are afraid that once you have done a ticket administration task (as a favor), that will be your job for the rest of your employment.
It's a skill you don't mind having, but it's one of the least desired forms of employment you can imagine.
To you, the ticket systems administration is the poo.
If you step in it, will you stink of it forever?
You fear.
You think twice.
It's happened before...
Will this be the end of enjoying your job?