'Never tread on the cracks in the pavement - no suggestion of what bad thing would happen'
.,,.

Yes, there was where I came from: the bears would get you!

In A A Milne's poem 'Lines and Squares', from "When we were very young", the narrator talks of walking to avoid the bears

Who wait at the corners all ready to eat
The sillies who tread on the lines in the street

≈M≈