It is true that ayahuasca can involve purging including vomiting and diarrhea. If you need help getting to the bathroom, our facilitators are on call to do so, and they will let you know how to easily signal them should you need assistance. It is very rare that the situation you describe happens, as purging can take many different forms for different people, including crying, yawning, sweating, shaking, and laughing, among other things. Nevertheless, our facilitators are trained to respond should any scenario arise, and you will be well taken care of quickly and lovingly should a challenging physical situation occur. As we like to say (and as Dennis himself has seen and can attest to), everything is normal on ayahuasca, and whatever happens during ceremony is perfectly fine and nothing to be ashamed of or worried about!