The blind man's peck should be weel measured.
The blind mear's first in the mire.
The bonny moon is on her back, mend your shoon and sort your thack.
"When the new moon is in such a part of the ecliptic as to appear turned much over upon her back, wet weather is expected."—Robert Chambers.
The book o' may-be's is very braid.
The breath o' a fause friend's waur than the fuff o' a weasel.
The cart doesna lose its errand when it comesna hame toom-tail.
"To come back toom-tail is to go away with a load and come back empty."—Jamieson.
The proverb is applied to those who accomplish more than their errand.
The cat kens whase lips she licks.