That depends on the type of event. If we are shooting anything that is ‘table-top’ or using any sort of long exposure, such as light stencils. Then yes, you will need your tripod.
However, for any event where we are shooting a model under studio lights, then no, please leave your tripod at home. At a groups shoot with models a tripod would just get in the way and slow you and everyone else down. You certainly don’t need it, in terms of avoiding camera shake, the flash duration is so fast that it freezes everything but the fasted of actions.