I'd better not take any more at once in case they fall off.
I think something might fall off before we get back to the time you're looking for.
They might look, but probably figure I'll do something wrong and fall off.
Today, perhaps, they would fall off once and for all.
If you fall off, it is very hard to get back on.
It made her feel as if she were about to fall off, too.
The pain in his side almost made him fall off.
They fall off a bit at a time all through the stage.
You let your body go with it and just try not to fall off.
He was just beginning to fall off when she spoke again.