Your English didn't look mangled to me, Steve.
If I am going to eat out-of-date food I do usually use it in a cooked dish so that possible harmful organisms that wouldn't survive heating are dealt with. One can also try a small amount of the food and then wait a while in case anything nasty happens, but if I thought that might be a good plan it would be a sign that the food should be thrown out anyway.
I am happier to throw away salads as they go into the compost, and are thus not wasted.