You are part of a student team that has volunteered to host an alumni event at a recently re-opened museum in the downtown part of your city for the twin purposes of establishing contacts with long-lost alumni and with raising awareness of the newly re-opened museum.
Brainstorm 8 to 10 potential risks for this, quantify them both according to probability and impact, assign responsibility for each major risk, and create one or more contingency plans for each major risk.