Sinking

I'm just curious about something. If your toothpaste falls off your toothbrush before you start brushing and falls in your bathroom sink, do you use it anyway? Or start all over?

If you're eating a cookie over the kitchen sink ('cuz where else would you eat it?) and a bit of it falls in the sink, do you eat it anyway? Does your answer change if the part that fell in the sink contained a chocolate chip?