Reading this thread and omnivorr's post reminded me of the on -going joke with the character of Eric Cartman in "South Park", who actually really hates hippies (no one knows why). Perhaps Ken should put up of huge image of Cartman to frighten them away. Then again, Ken might then REALLY get attacked by these Hippies!!
At least, I hope for your sake they are like Neil in the TV Series "The Young Ones", who are so spaced out all the time that they wouldn't hurt anyone.
Lentil burgers anyone?
Andrew
Note: I laughed openly at ballaratdragons "Peace brother Ken" ...60's indeed.