I think I'm going to play games near an open casket.
Why will you be playing games near an open casket?
I think funerals are boring. I need to have some sort of fun while I am there at least.
You are behaving in a highly disrespectful way and should pay attention to the event. If you cannot act decently the people that are in attendance will be angry with you.
Who cares? Dead is dead.
I think the family of the deceased would be appalled at your actions. You should consider how they'd feel if they saw you playing video games at the funeral.