if the worst should happen―in case of emergency―in case of need―in time of need
Something may happen.
何たることか.
in spite of everything
what matter
to act as―officiate as―function as―functionate as―serve as or for―do duty as or for―something
どのもの
which
あの何やらいうもの
that what-do-you-call-it―that thingumbob
I wonder what I ought to do.
word referring to person (interrogative indicating who or which person; what person, which person, who)
to do nothing
どんなことでも