What would you do if this happened to you?

[seenkung]

I hope I don't eat this kind of dish and pretend to be friendly.
I'll just complain and don't feel uneasy about it.

[katan22]

I will tell my friend that I am not eating because the cat already ate it before us. I will tell her that the cat might have rabies and that we can get one too if we eat it.

[ten]

OK, what she has already done is quite enough. But I think when health is in question then you should not be over generous and should react according to the situation. To me the best reply would be to tell her clearly about the findings and then debar others from eating it too.