TPS386000: Does WDT have running oscillator, and possible abs-max violation when monitoring negative rail

Hello, my questions are actually related to the TPS386000, and possibly the TPS3701 as well....

1. Is the WDT in TPS386000 made of an oscillator and counter?   If so, if the WDT times-out, does the oscillator stop, or will it run continuously (and what freq)?
2. If monitoring negative voltage with the Over-voltage comparator (either TPS386000 with internal VREF bias, or TPS3701 with external positive bias), what happens if the negative rail is powered, but the positive VDD/Bias for the SVS is not powered due to fault condition?   The abs-max of -0.3V will be violated at the SENSE pin, will this destroy the device?
3. I presume there is a max current allowed through the SENSE pin and VREF pin of TPS386000 (or just INA, INB pins of TPS3701) in this fault condition.  I'm sure it's protection diodes that are biased in this case, so what is max allowable current through these diodes in fault condition (to size resistors appropriately).

thank you.