Not as rare as you think...
...not as bas a decomposing bird.
I was in Debenhams in Meadowhall a few months ago and my partner found a grasshopper in the salad.
The staff in store bagged the grasshopper up and sent it to head office. After testing head office wrote back to say it was a caterpillar!!
Obviously the grasshopper mutated during transport or that a) someone flunked GCSE Biology or b) a standard letter was sent out.
To say the least we don’t eat at Debenhams café anymore but we have lots of fun talking about it whenever we go in store, so other customers can hear our conversation. I think we have put a few people off.