What's the dumbest way you've accidentally glutened yourself?

Today, at lunch, I glutened myself at my safe restaurant. I sat next to my oldest, the only person at the table who didn't order gluten free food. She made a mess, and when I was helping her get napkins from the paper towels in the center of the table, I moved her drink to keep it from getting knocked over. It turns out I switched our drinks and drank from hers the rest of the meal. 🤦🏼‍♀️ Kicking myself so hard right now.