then it is very normal. A professor in my department was in that situation.
He left fully after one and half year. Doing so was to give him time to
hesitate. It is a big decision and we should give him 施 more time to think. And
if one is in the situation of 'on leave without pay', it is allowed
in US to apply for funding from the new university. The professor
I mentioned did so.

Therefore, one should make sure if 施 is in the situation of 'on leave without pay'
before attacking him.