Am I wrong to feel offended by...

I think that if I'd been performing a task for over a year without any issues, I'd be due an explanation if I was suddenly taken off the job and replaced by someone else.  So yes, it's perfectly reasonable (as I see it) for you to feel upset.  Have you spoken to the supervisor about the issue?  He or she really should have discussed it with you first - especially if it's meant a demotion, or a reduced chance of extra income.

I firmly believe that if someone is doing something wrong, or not to the satisfaction of their colleagues/superiors, and no one tells them... then how are they to know?  Surely, it's only reasonable to speak to the person and set them on the right course - or at least to discuss the issue properly.  But people don't tend to do this - especially in the workplace.  Instead, people get in their little huddles and gossip about the person.  It's very harmful - to all concerned.

An example.  I made a comment in the canteen yesterday about 'Ooh... mushy broccoli!'  Now, I actually like mushy broccoli.  But a colleague heard it and was good enough to come up to me later and say 'You need to be careful about making such comments where catering staff will be likely to hear them, because it's caused trouble before.'  I explained that I actually didn't mean it in a derogatory sense.  But I could see his point, and how the comment might be taken the wrong way, so I was grateful to him for pointing this out.  Otherwise, I might have gone  on making comments about 'mushy broccoli' and found myself in trouble!

I think that if I'd been performing a task for over a year without any issues, I'd be due an explanation if I was suddenly taken off the job and replaced by someone else.  So yes, it's perfectly reasonable (as I see it) for you to feel upset.  Have you spoken to the supervisor about the issue?  He or she really should have discussed it with you first - especially if it's meant a demotion, or a reduced chance of extra income.

I firmly believe that if someone is doing something wrong, or not to the satisfaction of their colleagues/superiors, and no one tells them... then how are they to know?  Surely, it's only reasonable to speak to the person and set them on the right course - or at least to discuss the issue properly.  But people don't tend to do this - especially in the workplace.  Instead, people get in their little huddles and gossip about the person.  It's very harmful - to all concerned.

An example.  I made a comment in the canteen yesterday about 'Ooh... mushy broccoli!'  Now, I actually like mushy broccoli.  But a colleague heard it and was good enough to come up to me later and say 'You need to be careful about making such comments where catering staff will be likely to hear them, because it's caused trouble before.'  I explained that I actually didn't mean it in a derogatory sense.  But I could see his point, and how the comment might be taken the wrong way, so I was grateful to him for pointing this out.  Otherwise, I might have gone  on making comments about 'mushy broccoli' and found myself in trouble!