WF,
You aren't being a bore at all. I'd say it's a totally valid point as many don't realise the seriousness of cross contamination, although the publicity surrounding nut allergies has certainly raised awareness. In the airline I work for, they do cover allergies and anaphylactic shock in a pretty big way, so hopefully, none of our crew would do this. Any caught doing such a thing would be slapped with the same piece of fish they were removing! After all, the last thing we want is a medical emergency at 35,000 ft.
Jsl
P.S. Is it wrong to feel ever so slightly pleased with myself for managing to spell anaphylactic correctly, first time?