How to handle exceptions raised by events?

[Jack Firth]

Using wrap-evt and handle-evt, I can transform the synchronization result of an event. But events can throw exceptions when they're synchronized. Is there a way to wrap an event such that the wrapper can catch (and maybe reraise) any exceptions thrown by the wrapped event? I know I can wrap a (sync evt) call in a with-handlers block, but that just synchronizes on the event instead of wrapping it and producing a new event.