It's the mouse that can free itself from the trap, which gets the cheese.
The mouse is the favorite of Nature, and it is necessary to keep it alive.
When the mouse laughs at the cat, there's a hole nearby.
The early bird catches the worm, but the second mouse gets the cheese.
A house mouse sees everything, but a field mouse sees the stars.
A mouse-trap; easy to make, easy to set, easy to empty.
If you give a mouse a cookie, he's going to ask for a glass of milk.
The best-laid schemes o' mice an' men Gang aft agley.
The cat loves fish, but she's loath to wet her feet.
If you want the mouse to play, you have to let it go.
Even the strongest of opponents always has a weakness.