I'm going to make a bad joke at the funeral of a friend's mother even if they told me not to
Why would you make a bad joke at a funeral?
I wanted to do it for quite some time already. Let the mother in heaven forgive me!
It's not moral to tell a joke inappropriately in a funeral if people are mourning. You want to be compassionate and helpful for the people who lost someone. I would rethink telling that joke you're planning and not do it.
I feel like doing it and it's my funeral. I'm going to make a joke about the friend's mother being a slut and a drunk.
This joke does not seem very appropriate at all for the occasion. Funerals are very sad occasions where you want to remember the person who passed away for their positive traits.