This Option is broken. It expects users to call:

watchdog.SystemDriven or watchdog.HeapDriven to actually do the trimming in times of an emergency, but this isn't documented anywhere. No user of this option calls these methods(https://github.com/search?q=WithEmergencyTrim&type=code)

I propose removing this completely. We should expose a ForceTrim option that closes the connection in times of an emergency, but the application should decide when it's necessary to ForceTrim the connection.