cakey/icing — Issue #2: 'are these two nodes linked by this path' 
Author: cakey
Created: 2012-02-18 17:33:59+00:00
State: open

myfriends = Friend(me)

isfriend = Friend(me, other)

but that doesn't imply a question?

also better to go from each end (less branching) - so implement reversing first