1. because he is still a little rabbit and most times adults don't listen to children.
2. because he said lots of lies before
3. they could be busy with other things
4. they have their own problems to deal with
5. because rabbits don't talk lol, ignore this last one
Answer:
allusion
Explanation:
This is the answer because allusion is very similar to the phrase and a lot of people are busy old fools.