Bacteria can do a number on people... Kept telling the wife to not cross contaminate jars, and other products. But you know, she knows better...
Wife was eating some fish in can, puts spoon back (with lovely saliva bacteria), puts in fridge "i wil eat tomorrow", 2 days later she eats the leftover.
She enjoyed a hour+ of "fun" muscles contracting stomach cramps to the point it was almost hospital time. Learned her lesson, well, ... for fish.
Its always like "but i do not like to keep using fresh utensils". I am always: "the dishwasher does not care if it 20 or 40 utensils". Its the same amount of wash and cost. So stop trying to recycle utensils!