I run a small concert series in Richmond, Virginia. We hold the concerts in a synagogue, in exchange for a small fee. I've been asked to provide a Certificate of Insurance for the concerts - just on the off chance that someone should slip and fall, or tip over a coffee urn, etc. I've contacted a few companies but no response - they all seem to want to insure large events. We only have 40 to 100 people usually. Anybody have a recommendation?