Other plants that bite:
Nettles - they lean onto the path aiming for your hands
Brambles - whipsawing across your legs
Dog rose - whipsawing across arms and face
Giant hogweed - bites on any sort of contact
Grasses - they've got silica spines embedded in them to make them hard to eat, and the edges cut like a saw
Hawthorn - why is the gap in the hedge always guarded by hawthorn?
Blackthorn/sloe - massive spines that seem to aim to embed themselves under a fingernail
I have the scars to prove it too!