They say

it is a strong man that
can walk away -there was never a truer statement. Your
ippon should never be defending a space by the bar, or a bit
of tarmac on the road. Your ippon should be over-riding all
the non-starters and escaping if the circumstances allow. If
you can't escape, verbal dissuasion Is the next line of
defence and also incorporates escape. We are employing
verbal to escape a potentially violent situation.
If you are walking down the street and you sense malice in
front of you, walk the other way or cross the street, nip into
a busy shop, stop a policeman or knock on a house door and
ask them to call the police. If you're in a bar and you sense
that there is going to be trouble inform the doorstaff, escape
out the back exit, phone the police etc. If you are forced into
verbal dissuasion, then communication is of the utmost
importance.