I think switching things around to avoid getting identified is a great idea. I think I'll do that from now on.
I'll use a different employee's name instead of the one I interacted with. That will confuse them.
I'll change the content of the interaction when I report so they won't be able to remember me.
I'll report that things were present which weren't and that other things were missing which were there.
Please help me think of more ways to keep my anonymity.
The results I submit may not be the true results for the shops and, thus, not useful to the client. Oh well, at least I'll make a few bucks. That's what is important.