Don`t knock it :).
I had a blocked drain earlier(flood in the garage). Opened the outside garage door and my neighbours noticed the water and asked if I needed a hand.
Well the normal tricks didn`t work so I went off in search of something to rod the drain with-a couple of minutes later I heard Sue(my neighbour,calling me to say it was fixed.
Her Gran always swore by a holly branch so they had cut one and Dick(her husband) had cleared the blockage.
One learns something new every day!
Great- we've got lots of Holly.