I am interested to learn from you all if you have experienced any scares due to ingesting anything out in nature. Are Warfarin patients affected by ocean water, sand, pollen, grass, dirt, flowers? I have a 4 year old and a 2 year old who love to play outside and I am a big advocate of handwashing after we come in from outside. But I do not know what to expect if the children should get really curious and put something in their mouths. I am interested to learn from your experiences. Thank you.