I am sorry to say that I have seen many weirdos and drunks on public transport, and my default setting is never look the crazies in the eye.
Of course this isn't ideal, and there may well have been individuals that I might have been able to help, and there may be individuals I won't help in the future.
But it is interesting that the person who did help was a man.
I don't think it is a good idea for many women to march up to apparently drunk strangers and start offering assistance. It could easily go horribly wrong.