Most people will be more than willing to change gloves or use a clean utensil if you ask.
Perhaps you're aware as well that it can be difficult to remember to wash your hands between working with gluten and gluten-free products or to wash a utensil before using it when preparing a gluten-free meal.
You should be able to scrape it off in the morning with a wooden cooking utensil and rinse off the stain easily.
While it may take longer to complete a set of dishware or to fully outfit a utensil drawer, the savings can be substantial.
Dish/Utensil Set-A silver dish and utensil set can be passed on to following generations as a cherished heirloom.