For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.(1Co.1:18)
A letter from my father:
Hello Dear Children,
Today is, yes, April Fool's Day. I remember times when I and friends would seek ways to trick each other, saying things like "We are supposed to get 12 inches of snow today" when it was not true. I'm glad our family does not practice a lot of that. Using the word fool does remind me of our calling to be fools for Christ's sake. In this sense I always need to be called back to being a fool.
Here's a short list which comes to mind
Allowing someone to cut in front of you in line.
Allowing someone to take "advantage" of you.
Allowing someone to think you are stupid when you are not.
Allowing your kids to think they are fooling you.
Making decisions which help others instead of yourself.
Telling people you believe in Jesus.
Telling people you believe Jesus Christ is the only path to God.
Telling people there are absolute truths which can be known.
Not defending yourself when someone questions your word.
Praying in public.
I wonder what your list is...