"Maybe the FaF permathread would do for advice and help running events?"

DofE, I think as well as broader advice, it might be worth having a constructive specific discussion about strategies to help volunteers manage and hopefully diffuse problematic issues surrounding possible threats of violence etc.? How to approach landlords as hosts, how to circumvent possible problems of confrontation and so-on. I think recognising potential issues and offering constructive strategies to address them, might possibly help to put some peeps minds at rest.