The Tale of the Flopsy Bunnies

The Flopsy Bunnies are the children of Benjamin and Flopsy Bunny. One afternoon they go hunting for lettuces with their father. But eating too much lettuce makes you sleepy and while the little bunnies have a nap, the farmer comes and captures them all and ties them up in a sack. Will they escape? And if they do, what tricks will they play on the farmer?